Что такое kde в linux

KDE is a software project currently comprising a desktop environment known as Plasma, a collection of libraries and frameworks (KDE Frameworks) and several applications (KDE Applications) as well. KDE upstream has a well maintained UserBase wiki. Detailed information about most KDE applications can be found there.

Installation

Plasma

Before installing Plasma, make sure you have a working Xorg installation on your system.

Install the plasma-meta meta-package or the plasma group. For differences between plasma-meta and plasma reference Package group. Alternatively, for a more minimal Plasma installation, install the plasma-desktop package. Upstream KDE has package and setup recommendations to get a fully-featured Plasma session.

To enable support for Wayland in Plasma, also install the plasma-wayland-session package. If you are an NVIDIA user with the proprietary nvidia driver, also enable the DRM kernel mode setting. If that does not work, too, check the instructions on the KDE wiki.

Plasma Mobile

KDE applications

To install the full set of KDE Applications, install the kde-applications group or the kde-applications-meta meta-package. If you only want KDE applications for a certain category such as games or education, install the relevant dependency of kde-applications-meta . Note that this will only install applications, it will not install any version of Plasma.

Unstable releases

Starting Plasma

Plasma can be started either using a display manager, or from the console.

Using a display manager

Select Plasma (X11) to launch a new session in Xorg.
Select Plasma (Wayland) to launch a new session in Wayland.
Select Plasma Mobile (Wayland) to launch a new Plasma Mobile session in Wayland.

From the console

To start Plasma with xinit/startx, append export DESKTOP_SESSION=plasma and exec startplasma-x11 to your .xinitrc file. If you want to start Xorg at login, please see Start X at login.
To start a Plasma on Wayland session from a console, run startplasma-wayland [1]. Manually starting a dbus-session through dbus-run-session should not be needed [2].

Configuration

Most settings for KDE applications are stored in

/.config/ . However, configuring KDE is primarily done through the System Settings application. It can be started from a terminal by executing systemsettings .

Personalization

Plasma desktop

Themes

There are different types of KDE themes, varying by scope of what they modify:

Application styles that use theme engines such as Kvantum, QtCurve[3], QSvgStyle[4], and Aurorae. , providing icons for applications, files, and actions.

For easy system-wide installation and updating, some themes are available in both the AUR.

Global themes can also be installed through System Settings > Appearance > Global Theme > Get New Global Themes. .

GTK application appearance

The recommended theme for a pleasant appearance in GTK applications is breeze-gtk , a GTK theme designed to mimic the appearance of Plasma’s Breeze theme. Install kde-gtk-config (part of the plasma group) and select Breeze as the GTK theme in System Settings > Appearance > Application Style > Configure GNOME/GTK Application Style. .

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In some themes, tooltips in GTK applications have white text on white backgrounds making it difficult to read. To change the colors in GTK2 applications, find the section for tooltips in the .gtkrc-2.0 file and change it. For GTK3 application two files need to be changed, gtk.css and settings.ini .

Some GTK2 programs like vuescan-bin AUR still look hardly usable due to invisible checkboxes with the Breeze or Adwaita skin in a Plasma session. To workaround this, install and select e.g. the Numix-Frost-Light skin of the numix-frost-themes AUR under System Settings > Appearance > Application Style > Configure GNOME/GTK Application Style. > GTK theme. Numix-Frost-Light looks similar to Breeze.

Faces

Plasma and SDDM will both use images found at /var/lib/AccountsService/icons/ as users’ avatars. To configure with a graphical interface, you can use System Settings > Users, which may first need to be installed (see the plasma-desktop package). The file corresponding to your username can be removed to restore the default avatar.

Widgets

Plasmoids are widgets for plasma desktop shell designed to enhance the functionality of desktop, they can be found on the AUR.

Plasmoid scripts can also be installed by right-clicking onto a panel or the desktop and choosing Add Widgets > Get New Widgets. > Download New Plasma Widgets. This will present a front-end for https://store.kde.org/ that allows you to install, uninstall, or update third-party Plasmoid scripts with just one click.

Sound applet in the system tray

Install plasma-pa or kmix (start Kmix from the Application Launcher). plasma-pa is now installed by default with plasma , no further configuration needed.

Disable panel shadow

As the Plasma panel is on top of other windows, its shadow is drawn over them. [5] To disable this behaviour without impacting other shadows, install xorg-xprop and run:

then select the panel with the plus-sized cursor. [6] For automation, install xorg-xwininfo and create the following script:

The script can be run on login with Add Script in Autostart:

Display scaling / High DPI displays

Plasma Mobile

To use Plasma Mobile on small screens, plasma-phone-settings contains several settings which can be applied globally ( /etc/xdg ) and/or per user

Applications blacklist

/.config/applications-blacklistrc ) removes applications from the applications menu/launcher to unclutter it.

KDE globals

/.config/kdeglobals ) does the following:

Sets the webbrowser to Angelfish.
Sets the look and feel (org.kde.plasma.phone) such that e.g. windows are maximized and do not have a titlebar.

Lock screen

/.config/kscreenlockerrc ) locks the screen immediately after login. This is useful in combination with SDDM#Autologin.

/.config/kwinrc ) does the following:

Disables blur to improve performance.
Enables the Maliit virtual keyboard.

Window decorations

They can be changed in System Settings > Appearance > Window Decorations, there you can also directly download and install more themes with one click.

Icon themes

Icon themes can be installed and changed on System Settings > Appearance > Icons.

Space efficiency

The Plasma Netbook shell has been dropped from Plasma 5, see the following KDE forum post. However, you can achieve something similar by editing the file

/.config/kwinrc adding BorderlessMaximizedWindows=true in the [Windows] section.

Thumbnail generation

To allow thumbnail generation for media or document files on the desktop and in Dolphin, install kdegraphics-thumbnailers and ffmpegthumbs .

Then enable the thumbnail categories for the desktop via right click on the desktop background > Configure Desktop and Wallpaper. > Icons > Configure Preview Plugins. .

In Dolphin, navigate to Configure > Configure Dolphin. > General > Previews.

Night Color

Plasma provides a Redshift-like feature (working on both Xorg and Wayland) called Night Color. It makes the colors on the screen warmer to reduce eye strain at the time of your choosing. It can be enabled in System Settings > Display and Monitor > Night Color.

Printing

You can also configure printers in System Settings > Printers. To use this method, you must first install the following packages print-manager , cups , system-config-printer . See CUPS#Configuration.

Samba/Windows support

If you want to have access to Windows services, install Samba (package samba ).

The Dolphin share functionality requires the package kdenetwork-filesharing and usershares, which the stock smb.conf does not have enabled. Instructions to add them are in Samba#Enable Usershares, after which sharing in Dolphin should work out of the box after restarting Samba.

Unlike GTK file browsers which utilize GVfs also for the launched program, opening files from Samba shares in Dolphin via KIO makes Plasma copy the whole file to the local system first with most programs (VLC is an exception). To workaround this, you can use a GTK based file browser like thunar with gvfs and gvfs-smb (and gnome-keyring for saving login credentials) to access SMB shares in a more able way.

Another possibility is to mount a Samba share via cifs-utils to make it look to Plasma like if the SMB share was just a normal local folder and thus can be accessed normally. See Samba#Manual mounting and Samba#Automatic mounting.

An GUI solution is available with samba-mounter-git AUR , which offers basically the same functionality via an easy to use option located at System Settings > Network Drivers. However, it might break with new KDE Plasma versions.

KDE Desktop activities

KDE Desktop Activities are special workspaces where you can select specific settings for each activity that apply only when you are using said activity.

Power management

Install powerdevil for an integrated Plasma power managing service. This service offers additional power saving features, monitor brightness control (if supported) and battery reporting including peripheral devices.

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Autostart

Plasma can autostart applications and run scripts on startup and shutdown. To autostart an application, navigate to System Settings > Startup and Shutdown > Autostart and add the program or shell script of your choice. For applications, a .desktop file will be created, for login scripts, a .desktop file launching the script will be created.

Programs can be autostarted on login only, whilst shell scripts can also be run on shutdown or even before Plasma itself starts.
Shell scripts will only be run if they are marked executable.
Shell scripts previously placed in

Place Desktop entries (i.e. .desktop files) in the appropriate XDG Autostart directory.
Place or symlink shell scripts in one of the following directories:
Phonon

Phonon is the multimedia API provided by KDE and is the standard abstraction for handling multimedia streams within KDE software and also used by several Qt applications. Phonon was originally created to allow KDE and Qt software to be independent of any single multimedia framework such as GStreamer or xine and to provide a stable API for a major version’s lifetime.

Phonon is being widely used within KDE, for both audio (e.g., the System notifications or KDE audio applications) and video (e.g., the Dolphin video thumbnails). It can use the following backends:
KDE recommends only the VLC backend. The GStreamer backend is unmaintained but prominent Linux distributions (Kubuntu and Fedora-KDE for example) use it as default because that allows them to easily leave out patented MPEG codecs from the default installation.
- Multiple backends can be installed at once and prioritized via the phononsettings application.
- According to the KDE forums, the VLC backend lacks support for ReplayGain.
- If using the VLC backend, you may experience crashes every time Plasma wants to send you an audible warning and in quite a number of other cases as well [8]. A possible fix is to rebuild the VLC plugins cache:
Backup and restore

KDE Plasma 5 stores personalized desktop settings as configuration files in the XDG_CONFIG_HOME folder. Use the detail of configuration files to select and choose a method of backup and restore.

systemd startup

Plasma uses a systemd user instance to launch and manage all the Plasma services. This is the default startup method since Plasma 5.25, but can be disabled to use boot scripts instead with the following command (however this may stop working in a future release):

More details about the implementation can be read in Edmundson’s blog: plasma and the systemd startup.

Spell checking

KDE applications use sonnet for spell checking. See its optional dependencies for the supported spell checkers.

Configure it in System Settings > Regional Settings > Spell Check.

Running kwin wayland on NVIDIA

Applications

The KDE project provides a suite of applications that integrate with the Plasma desktop. See the kde-applications group for a full listing of the available applications. Also see Category:KDE for related KDE application pages.

Aside from the programs provided in KDE Applications, there are many other applications available that can complement the Plasma desktop. Some of these are discussed below.

System administration

Terminate Xorg server through KDE System Settings

Navigate to the submenu System Settings > Input Devices > Keyboard > Advanced (tab) > «Key Sequence to kill the X server» and ensure that the checkbox is ticked.

KCM stands for KConfig Module. KCMs can help you configure your system by providing interfaces in System Settings, or through the command line with kcmshell5.
- sddm-kcm — KDE Configuration Module for SDDM.
- kde-gtk-config — GTK2 and GTK3 Configurator for KDE.
- System policies — Set of configuration modules which allows administrator to change PolicyKit settings.
- wacom tablet — KDE GUI for the Wacom Linux Drivers.
- Kcmsystemd — systemd control module for KDE.
More KCMs can be found at linux-apps.com.

Desktop search

KDE implements desktop search with a software called Baloo, a file indexing and searching solution.

Web browsers

The following web browsers can integrate with Plasma:
- Konqueror — Part of the KDE project, supports two rendering engines – KHTML and the Chromium-based Qt WebEngine.
- Falkon — A Qt web browser with Plasma integration features, previously known as Qupzilla. It uses Qt WebEngine.
- Chromium — Chromium and its proprietary variant Google Chrome have limited Plasma integration. They can use KWallet and KDE Open/Save windows.
- Firefox — Firefox can be configured to better integrate with Plasma. See Firefox#KDE integration for details.
KDE offers its own stack for personal information management (PIM). This includes emails, contacts, calendar, etc. To install all the PIM packages, you could use the kde-pim package group or the kde-pim-meta meta package.

Akonadi

Akonadi is a system meant to act as a local cache for PIM data, regardless of its origin, which can be then used by other applications. This includes the user’s emails, contacts, calendars, events, journals, alarms, notes, and so on. Akonadi does not store any data by itself: the storage format depends on the nature of the data (for example, contacts may be stored in vCard format).

Install akonadi . For additional addons, install kdepim-addons .

MySQL

By default Akonadi will use /usr/bin/mysqld (MariaDB by default, see MySQL for alternative providers) to run a managed MySQL instance with the database stored in

System-wide MySQL instance

Akonadi supports using the system-wide MySQL for its database.[9]

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PostgreSQL

Akonadi supports either using the existing system-wide PostgreSQL instance, i.e. postgresql.service , or running a PostgreSQL instance with user privileges and the database in

Per-user PostgreSQL instance

Edit Akonadi configuration file so that it has the following contents:
- When Akonadi starts, it will create the [QPSQL] section and set the appropriate variables in it.
- The database will be stored in
Start Akonadi with akonadictl start , and check its status: akonadictl status .
System-wide PostgreSQL instance

This requires an already configured and running PostgreSQL.

Create a PostgreSQL user account for your user:

Create a database for Akonadi:

Configure Akonadi to use the system-wide PostgreSQL:

Start Akonadi with akonadictl start , and check its status: akonadictl status .

SQLite

To use SQLite, edit the Akonadi configuration file to match the configuration below:
- When Akonadi starts, it will create the [QSQLITE3] section and set the appropriate variables in it.
- The database will be stored as
Disabling Akonadi

Users who want to disable Akonadi would need to not start any KDE applications that rely on it. See this section in the KDE userbase for more information.

KDE Telepathy

KDE Telepathy is a project with the goal to closely integrate Instant Messaging with the KDE desktop. It utilizes the Telepathy framework as a backend and is intended to replace Kopete.

To install all Telepathy protocols, install the telepathy group. To use the KDE Telepathy client, install the telepathy-kde-meta package that includes all the packages contained in the telepathy-kde group.

Use Telegram with KDE Telepathy

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Telegram protocol is available using telepathy-haze , installing telegram-purple AUR or telegram-purple-git AUR and telepathy-morse-git AUR . The username is the Telegram account telephone number (complete with the national prefix +xx , e.g. +49 for Germany).

The configuration through the GUI may be tricky: if the phone number is not accepted when configuring a new account in the KDE Telepathy client (with an error message complaining about an invalid parameter which prevents the account creation), insert it between single quotes and then remove the quotes manually from the configuration file (

/.local/share/telepathy/mission-control/accounts.cfg ) after the account creation (if the quotes are not removed after, an authentication error should rise).

KDE Connect

KDE Connect provides several features to connect your Android or iOS phone with your Linux desktop:
- Share files and URLs to/from KDE from/to any app, without wires.
- Touchpad emulation: Use your phone screen as your computer’s touchpad.
- Notifications sync (4.3+): Read your Android notifications from the desktop.
- Shared clipboard: copy and paste between your phone and your computer.
- Multimedia remote control: Use your phone as a remote for Linux media players.
- WiFi connection: no usb wire or bluetooth needed.
- RSA Encryption: your information is safe.
You will need to install KDE Connect both on your computer and on your phone. For PC, install kdeconnect package. For Android, install KDE Connect from Google Play or from F-Droid. If you want to browse your phone’s filesystem, you need to install sshfs as well and configure filesystem exposes in your Android app. For iOS, install KDE Connect from the App Store. Not all features from the Android version are available on the iOS version.

It is possible to use KDE Connect even if you do not use the Plasma desktop. For desktop environments that use AppIndicators, such as Unity, install indicator-kdeconnect AUR package as well. For GNOME users, better integration can be achieved by installing gnome-shell-extension-gsconnect AUR instead of kdeconnect . To start the KDE Connect daemon manually, execute /usr/lib/kdeconnectd .

If you use a firewall, you need to open UDP and TCP ports 1714 through 1764 .

Sometimes, KDE Connect will not detect a phone. You can restart the services by running killall kdeconnectd and then opening kdeconnect in system settings or running kdeconnect-cli —refresh followed by kdeconnect-cli -l . You can also use Pair new device > Add devices by IP on KDE Connect for Android.

Tips and tricks

Use a different window manager

It is possible to use a window manager other than KWin with Plasma. This allows you to combine the functionality of the KDE desktop with the utility of a tiling window manager, which may be more fleshed out than KWin tiling scripts.

The component chooser settings in Plasma no longer allows changing the window manager, but you are still able to swap KWin via other methods.

Replacing KWin service

Since KDE 5.25, Plasma’s systemd based startup is enabled by default.

To replace KWin in this startup, you must first mask the plasma-kwin_x11.service for the current user to prevent it from starting.

Then, create a new systemd user unit to start your preferred WM [11]:

To use it, do (as user units) a daemon-reload, make sure you have masked plasma-kwin_x11.service then enable the newly created plasma-custom-wm.service .

Using script-based boot and KDEWM

Plasma’s script-based boot is used by disabling #systemd startup. If you have done so, you can change the window manager by setting the KDEWM environment variable before Plasma is invoked.

System-wide

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If you have root access, you can also add an XSession that will be available to all users as an option on the login screen.

First, create a script with execution permissions as follows:

Replace /usr/bin/i3 to the path to your preferred WM. Ensure the path is correctly set. If KDE is unable to start the window manager, the session will fail and the user will be returned to the login screen.

Then, to add an XSession, add a file in /usr/share/xsessions with the following content:

KDE/Openbox session

The openbox package provides a session for using KDE with Openbox. To make use of this session, select KDE/Openbox from the display manager menu.

For those starting the session manually, add the following line to your xinit configuration:

KWin tiling window scripts

Bismuth and Kröhnkite are Kwin scripts that tiles windows automatically and lets you manage them via keyboard. Bismuth is more actively developed.

KZones is a KWin script that mimicks the behavior of the «Fancy Zones» feature of Microsoft PowerToys.

Configuring monitor resolution / multiple monitors

To enable display resolution management and multiple monitors in Plasma, install kscreen . This provides additional options to System Settings > Display and Monitor.

Configuring ICC profiles

To enable ICC profiles in Plasma, install colord-kde . This provides additional options to System Settings > Color Corrections.

ICC profiles can be imported using Add Profile.

Disable opening application launcher with Super key (Windows key)

To disable this feature you currently can run the following command:

Disable bookmarks showing in application menu

With the Plasma Browser integration installed, KDE will show bookmarks in the application launcher.

To disable this feature, you can run the following commands:

IBus Integration

IBus is an input method framework and can be integrated into KDE. See IBus#Integration for details.

Using IBus may be required when using KDE on Wayland to offer accented characters and dead keys support [12].

Enable hotspot in plasma-nm

Restore previous saved session

If you have System Settings > Startup and Shutdown > Desktop Session > When logging in: Restore previous saved session (default) selected, ksmserver (KDE’s session manager) will automatically save/load all open applications to/from

/.config/ksmserverrc on logout/login.

Receive local mail in KMail

If you have set up local mail delivery with a mail server that uses the Maildir format, you may want to receive this mail in KMail. To do so, you can re-use KMail’s default receiving account «Local Folders» that stores mail in

/Maildir directory (where Maildir format mail is commonly delivered) to the Local Folders’ inbox:

Alternatively, add a new receiving account with the type Maildir and set

/Maildir as its directory.

Configure Plasma for all users

Edit config/main.xml files in the /usr/share/plasma . For example, to configure the Application Launcher for all users, edit /usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/config/main.xml . To prevent the files from being overwritten with package updates, add the files to Pacman’s NoUpgrade

Disable hibernate

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Properly disable the hibernate feature and hide it from the menu with a Polkit policy rule.

Alternatively, add the following lines to a file in /etc/systemd/sleep.conf.d/ :

Using window rules

Kwin has the ability to specify rules for specific windows/applications. For example, you can force enable the window titlebar even if the application developer decided that there should not be one. You can set such rules as specific starting position, size, minimize state, keeping above/below others and so on.

To create a rule you can press Alt+F3 when the window of interest is in focus. Then, in More Actions > Configure special application/window settings, you can set the desired property. A list of created rules is available from System Settings > Window Management > Window Rules.

Virtual keyboard

There are no virtual keyboards installed by default. Choose an appropriate one from List of applications/Utilities#On-screen keyboards, for example the Maliit keyboard, and install it. Then enable it in System Settings.

Troubleshooting

qt5ct and kvantum bugs after upgrade

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Latest update might cause incompatible HiDPI scaling that made some interfaces becomes too big for your screen, some icons are missing or can not be displayed, and missing panels or widgets.

Try to remove qt5ct and kvantum related package, then apply default global Plasma theme. If the problem persists, try clearing all your KDE configuration and reinstalling plasma to overwrite the configuration. Be sure to check HiDPI scaling in KDE system settings as well.

Fonts

Fonts in a Plasma session look poor

Try installing the ttf-dejavu and ttf-liberation packages.

After the installation, be sure to log out and back in. You should not have to modify anything in System Settings > Appearance > Fonts. If you are using qt5ct , the settings in Qt5 Configuration Tool may override the font settings in System Settings.

If you have personally set up how your Fonts render, be aware that System Settings may alter their appearance. When you go System Settings > Appearance > Fonts System Settings will likely alter your font configuration file ( fonts.conf ).

There is no way to prevent this, but, if you set the values to match your fonts.conf file, the expected font rendering will return (it will require you to restart your application or in a few cases restart your desktop). Note that Gnome’s Font Preferences also does this.

Fonts are huge or seem disproportional

Try to force font DPI to 96 in System Settings > Appearance > Fonts.

If that does not work, try setting the DPI directly in your Xorg configuration as documented in Xorg#Setting DPI manually.

Configuration related

Many problems in KDE are related to its configuration.

Plasma desktop behaves strangely

Plasma problems are usually caused by unstable Plasma widgets (colloquially called plasmoids) or Plasma themes. First, find which was the last widget or theme you had installed and disable or uninstall it.

So, if your desktop suddenly exhibits «locking up», this is likely caused by a faulty installed widget. If you cannot remember which widget you installed before the problem began (sometimes it can be an irregular problem), try to track it down by removing each widget until the problem ceases. Then you can uninstall the widget, and file a bug report on the KDE bug tracker only if it is an official widget. If it is not, it is recommended to find the entry on the KDE Store and inform the developer of that widget about the problem (detailing steps to reproduce, etc.).

If you cannot find the problem, but you do not want all the settings to be lost, navigate to

/.config/ and run the following command:

This command will rename all Plasma related configuration files to *.bak (e.g. plasmarc.bak ) of your user and when you will relogin into Plasma, you will have the default settings back. To undo that action, remove the .bak file extension. If you already have *.bak files, rename, move, or delete them first. It is highly recommended that you create regular backups anyway. See Synchronization and backup programs for a list of possible solutions.

Clean cache to resolve upgrade problems

The problem may be caused by old cache. Sometimes, after an upgrade, the old cache might introduce strange, hard to debug behaviour such as unkillable shells, hangs when changing various settings, Ark being unable to extract archives or Amarok not recognizing any of your music. This solution can also resolve problems with KDE and Qt applications looking bad after an update.

Rebuild the cache using the following commands:

Optionally, empty the

/.cache/ folder contents, however, this will also clear the cache of other applications:

Plasma desktop does not respect locale/language settings

Plasma desktop may use different settings than you set at KDE System Settings panel, or in locale.conf (per Locale#Variables). First thing to do is log out and log in after removing

/.config/plasma-localerc , if this does not fix the issue, try to edit the file manually. For example, to set LANG variable to es_ES.UTF-8 and the LC_MESSAGES variable to en_US.UTF-8 :

Cannot change theme, icons, fonts, colors in systemsettings; most icons are not displayed

Make sure that QT_QPA_PLATFORMTHEME environment variable is unset, the command printenv QT_QPA_PLATFORMTHEME should show empty output. Otherwise if you had an environment set (most likely qt5ct) the variable will force qt5ct settings upon Qt applications, the command export QT_QPA_PLATFORMTHEME= should unset the environment.

An easier (and more reliable) solution can be to uninstall completely qt5ct.

Volume control, notifications or multimedia keys do not work

Hiding certain items in the System Tray settings (e.g. Audio Volume, Media Player or Notifications) also disables related features. Hiding the Audio Volume disables volume control keys, Media Player disables multimedia keys (rewind, stop, pause) and hiding Notifications disables showing notifications.

Login Screen KCM does not sync cursor settings to SDDM

The Login Screen KCM reads your cursor settings from

/.config/kcminputrc , without this file no settings are synced. The easiest way to generate this file is to change your cursor theme in System Settings > Cursors, then change it back to your preferred cursor theme.

Missing panels/widgets

A crash or hardware change can modify the screen numbers, even on a single monitor setup. The panels/widgets can be missing after such an event, this can be fixed in the

/.config/plasma-org.kde.plasma.desktop-appletsrc file by changing the lastScreen values.

Graphical problems

Make sure you have the proper driver for your GPU installed. See Xorg#Driver installation for more information. If you have an older card, it might help to #Disable desktop effects manually or automatically for defined applications or #Disable compositing.

Getting current state of KWin for support and debug purposes

This command prints out a summary of the current state of KWin including used options, used compositing backend and relevant OpenGL driver capabilities. See more on Martin’s blog.

Disable desktop effects manually or automatically for defined applications

Plasma has desktop effects enabled by default and e.g. not every game will disable them automatically. You can disable desktop effects in System Settings > Workspace Behavior > Desktop Effects and you can toggle desktop effects with Alt+Shift+F12 .

Additionally, you can create custom KWin rules to automatically disable/enable compositing when a certain application/window starts under System Settings > Window Management > Window Rules.

Enable transparency

If you use a transparent background without enabling the compositor, you will get the message:

In System Settings > Display and Monitor > Compositor, check Compositing: Enable on startup and restart Plasma.

Disable compositing

In System Settings > Display and Monitor > Compositor, uncheck Compositing: Enable on startup and restart Plasma.

Flickering in fullscreen when compositing is enabled

In System Settings > Display and Monitor > Compositor, uncheck Compositing: Allow applications to block compositing. This may harm performance.

Plasma cursor sometimes shown incorrectly

Create the directory

/.icons/default and inside a file named index.theme with the following contents:

Execute the following command:

Cursor jerking/flicking when changing roles (e.g., when mousing over hyperlinks)

Try installing the appropriate 2D acceleration driver for your system and window manager.

Unusable screen resolution set

Your local configuration settings for kscreen can override those set in xorg.conf . Look for kscreen configuration files in

/.local/share/kscreen/ and check if mode is being set to a resolution that is not supported by your monitor.

Blurry icons in system tray

In order to add icons to tray, applications often make use of the library appindicator. If your icons are blurry, check which version of libappindicator you have installed. If you only have libappindicator-gtk2 installed, you can install libappindicator-gtk3 as an attempt to get clear icons.

Cannot change screen resolution when running in a virtual machine

When running Plasma in a VMware, VirtualBox or QEMU virtual machine, kscreen may not allow changing the guest’s screen resolution to a resolution higher than 800×600.

The workaround is to set the PreferredMode option in xorg.conf.d(5) . Alternatively try using a different graphics adapter in the VM, e.g. VBoxSVGA instead of VMSVGA for VirtualBox and Virtio instead of QXL for QEMU. See KDE Bug 407058 for details.

Dolphin, Kate, etc. stuck long time when opening

Check whether your user directories ( Documents , Downloads , etc.) are read-only.

Spectacle screenshot uses old screen state

In System Settings > Display and Monitor > Compositor, change Keep window thumbnails from Only from Shown windows to Never.

Sound problems

No sound after suspend

If there is no sound after suspending and if KMix does not show audio devices which should be there, restarting plasmashell and pulseaudio may help:

Some applications may also need to be restarted in order for sound to play from them again.

MP3 files cannot be played when using the GStreamer Phonon backend

This can be solved by installing the GStreamer libav plugin (package gst-libav ). If you still encounter problems, you can try changing the Phonon backend used by installing another such as phonon-qt4-vlc AUR or phonon-qt5-vlc .

Then, make sure the backend is preferred via System Settings > Multimedia > Audio and Video > Backend.

If the settings does not show any, try phononsettings in your terminal.

No volume control icon in tray and cannot adjust sound by function key

Check if you have plasma-pa installed.

Power management

No Suspend/Hibernate options

If your system is able to suspend or hibernate using systemd but do not have these options shown in KDE, make sure powerdevil is installed.

KMail

Clean Akonadi configuration to fix KMail

See [13] for details.

If you want a backup, copy the following configuration directories:

Empty IMAP inbox in KMail

For some IMAP accounts KMail will show the inbox as a top-level container (so it will not be possible to read messages there) with all other folders of this account inside.[14]. To solve this problem simply disable the server-side subscriptions in the KMail account settings.

Authorization error for EWS account in KMail

While setting up EWS account in KMail, you may keep getting errors about failed authorization even for valid and fully working credentials. This is likely caused by broken communication between KWallet and KMail. To workaround the issue set a passsword via qdbus:

Aggressive QXcbConnection / kscreen.xcb.helper journal logging

KF5/Qt 5 applications do not display icons in i3/FVWM/awesome

Problems with saving credentials and persistently occurring KWallet dialogs

It is not recommended to turn off the KWallet password saving system in the user settings as it is required to save encrypted credentials like WiFi passphrases for each user. Persistently occuring KWallet dialogs can be the consequence of turning it off.

In case you find the dialogs to unlock the wallet annoying when applications want to access it, you can let the display managers SDDM and LightDM unlock the wallet at login automatically, see KDE Wallet#Unlock KDE Wallet automatically on login. The first wallet needs to be generated by KWallet (and not user-generated) in order to be usable for system program credentials.

In case you want the wallet credentials not to be opened in memory for every application, you can restrict applications from accessing it with kwalletmanager in the KWallet settings.

If you do not care for credential encryption at all, you can simply leave the password forms blank when KWallet asks for the password while creating a wallet. In this case, applications can access passwords without having to unlock the wallet first.

Discover does not show any applications

This can be solved by installing packagekit-qt5 .

Discover stops showing updates from Arch repositories

Discover sometimes will not remove its PackageKit alpm lock. To release it, remove /var/lib/PackageKit/alpm/db.lck . Use «Refresh» in Discover and updates should appear (if there are any updates pending).

High CPU usage of kscreenlocker_greet with NVIDIA drivers

As described in KDE Bug 347772 NVIDIA OpenGL drivers and QML may not play well together with Qt 5. This may lead kscreenlocker_greet to high CPU usage after unlocking the session. To work around this issue, set the QSG_RENDERER_LOOP environment variable to basic .

Then kill previous instances of the greeter with killall kscreenlocker_greet .

OS error 22 when running Akonadi on ZFS

If your home directory is on a ZFS pool, create a

/.config/akonadi/mysql-local.conf file with the following contents:

Some programs are unable to scroll when their windows are inactive

This is caused by the problematic way of GTK3 handling mouse scroll events. A workaround for this is to set environment variable GDK_CORE_DEVICE_EVENTS=1 . However, this workaround also breaks touchpad smooth scrolling and touchscreen scrolling.

TeamViewer behaves slowly

When using TeamViewer, it may behave slowly if you use smooth animations (such as windows minimizing). See #Disable compositing as a workaround.

Kmail, Kontact and Wayland

Kmail may become unresponsive, show a black messageviewer or similar, often after having been minimized and restored. A workaround may be to set environment variable QT_QPA_PLATFORM=»xcb;wayland» . See KDE Bug 397825.

Unlock widgets (Plasma ≥ 5.18)

If you previously locked your widgets, you will probably find yourself unable to unlock them again. You just have to run this command to do so:

The new Customize Layout does not require to lock them back up but if want to do that:

KIO opens URLs with the wrong program

Check file associations regarding HTML, PHP, etc. and change it to a browser. KIO’s cache files are located in $HOME/.cache/kioexec . See also xdg-utils#URL scheme handlers.

Custom Shortcuts tab is missing under Shortcuts in System Settings

This is due to the khotkeys package being missing. After installation, a restart of the System Settings application may be necessary to apply the changes.

Lock the screen before suspending and hibernating

In the System Settings application, KDE offers a setting to automatically lock the screen after waking up from sleep. Upon resuming, some users report that the screen is briefly showed before locking. To prevent this behavior and have KDE lock the screen before suspending, create a hook in systemd(1) by creating the following file as the root user:

The use of sleep is necessary in order for the lock-session to complete before the device is suspended. Lower value do not allow for completion.

After creating the file, make it executable.

Finally, make sure that the KDE setting is enabled by going to System Settings > Workspace Behavior > Screen Locking and checking the After waking from sleep checkbox.

X11 shortcuts conflict on Wayland

Some X11 software like freerdp can grab keyboard input since KDE 5.27. Others like VMware cannot grab correctly. [15]

It is inappropriate to force grab in Xserver or in compositors. [16] You can solve it in an elegant way as follows:

KDE and Season of KDE (SoK)

KDE stands for K Desktop Environment. It is a desktop environment for Linux based operation system. You can think KDE as a GUI for Linux OS.
KDE has proved Linux users:
1. to make it use as easy as they use windows.
2. a graphical interface to choose their own customized desktop environment.
Why should you choose KDE?

Easy Integration: KDE is well integrated with many applications of all kinds. Applications do not have to be written specifically for KDE, and all of the applications that are typically part of the GNOME desktop also work just fine in KDE
Look and Feel: I like the many ways in which I can change the look of the KDE Plasma workspace. Sometimes we like to set colors and looks that suits our mood. Icons, widgets, fonts, pointers, the window decorations, and much more can also be changed, and you can download and install new ones if those already installed are not right for you.
Flexibility: KDE allows me to define the functions of the mouse buttons, how windows behave, and how to deal with new devices that are plugged in such as whether to mount them if they are storage devices and which applications to open automatically.

And here is where the GUI desktop combines with the CLI to enhance user exp. The feature I find most useful is the fact that the Konsole window allows for multiple tabs with a separate terminal session in each tab.

It took me by surprise, how huge the KDE community is and how flawlessly this team works co-operating on development and distribution of Free, Open Source Software for desktop and portable computing. It is an amazing community with more than 50 million users, where people can:
1. Download and use an app for free
2. Read the source code, learn, grow and contribute.
And the best part is for contributing in KDE and become a part of you need not necessarily be a developer, There are many different ways you can become part of this,
- Development: If you like coding and want to work on a project to add new features or resolve any bug, collaborating with people from all around the world.
- Translation: If you are good at multiple communicating language, you can help KDE in globalizing by translating texts of KDE software
- Art: If you have got artistic skills and like creating new images and theme, a large audience of KDE are keen to see your artwork
- Documentation: If you wish to help users to understand how to use the software and keep text files up to date
- Promotion: If you want to be part of a flexible team which spreads the word of KDE to expand its user range
- KDE bug squad: By keeping track of incoming bug reports, verifying them, improving them and cleaning them up, you will help developers figure out what bugs they need to work on and help them get the information they need to fix them.
Do check out the KDE Community Wiki for more details.

KDE has many application domains which can be categorized as

1. KDE — Development
e.g. KDevelop IDE: CPP files KDiff3, Kompare: for creating diff patch

2. KDE — Education
Kalzium: chemistry, Kletters: alphabet edu, KAlgebra: Maths

3. KDE — Games
KDiamond: Three-in-a-row game, KPatience: Patience Card Game, KSudoku: Sudoku Game

4. KDE — Graphics
KPhoto Album: Photo Album, KolourPaint: Paint Program,
Karbon: Scalable Graphics

5. KDE — Internet
KNode: News Reader, KRDC: Remote Desktop Client, KGet: Download Manager

6. KDE — Multimedia
KMPlayer: Media Player, KsCD: CD Player, KMix: Sound Mixer

7. KDE — Office
Kontact: Personal Information Manager, KOrganizer: Personal Organizer Plan Project Management

8. KDE — System
Konsole Terminal: Dolphin File Manager, KSystemLog: System Log Viewer

9. KDE — Utilities
KCalc: Scientific Calculator, KJots: Note Taker, KTimer: Countdown Launcher, KFileReplace: Search & Replace Tool

10. Multiple Addons

There are more than 200 applciations in the KDE domain, refer the list here

What is Season of KDE?

Season of KDE is a community outreach program that has been hosted by the KDE community for nine years straight, wherein contributors across the globe participate, learn and develop together. This season of KDE is of about 3 months. Student application and mentor application submission begin in December.

Before submitting the proposal, students are expected to have a clear understanding of the project and idea. The first month of the program is communicating period where students exchange ideas with the expected mentor, through IRCs and mailing lists. Mentor verifies the feasibility of the idea.

In case you are not able to come up with your new idea, SoK idea page has few projects mentioned there. If you find any of those ideas interesting, you are supposed to first understand the project and the idea and then start connecting with the mentor mentioned along with the idea.

Mentor of SoK is always available for any kind of help you need though you are first expected to ask your queries in an appropriate mailing list or IRC and in case you are unable to find a satisfactory answer or suggestions from there, you can drop a mail to your mentor. There will be a reply within 24 hours (which is mostly expected as there may be time zone difference between your location and your mentor’s).

Purpose of the SoK program is to support as many budding developers as interested to begin their journey in FOSS world and also, to encourage those students who missed the change to get through the GSoC (Google Summer of Code). SoK support the students with perfect mentor-ship and delivering the best experience of being a part of a big community like KDE, with exciting goodies like T-shirt and certificate. It is managed by the same team of admins and mentors that takes care of Google Summer of Code and Google Code-in matters for KDE, so we can say it is very much like Google Summer of Code.

Why SoK?
Flexible timeline
Best Mentorship
Goodies
Certificate
Experience
Exposure

Getting started with SoK/contributing to any of the projects in KDE?

It is highly recommended for you to first go through some of the applications you like and look at the technologies used, mostly being C++, Qt, QML, and CMake.

Refer link which provides all the information about:

Mailing List/ News
Reporting bugs
Coding.

Now let’s study each if the process a little more in detail:
- First: how to subscribe to the mailing lists, What are the norms and where can you find the news feeds (The Dotand Planet KDE)
  As already mentioned mailing lists are the best way to know the current status of any project, new features being added and contributions being made currently.
  What is mailing list? It is very much similar to personal e-mail communications with more than one recipient, where you will be getting the notification periodically according to the span that you opt for daily or weekly.
  Mailing list: Click on the list name and subscribe by entering your email id.
- Second: How to report bugs(search if it already exist or file new bug), Create a new account if not already present, Use phabricator for performing code reviews where every other contributor can cross-check the changes and merge it in the project repo once approved by the team.
- Third: Getting started with the coding-C++, Qt
  C++ is the core technology being used in most of the projects under any domains, so you are not comfortable with it, it is highly recommended to first learn and how the structure and syntax of C++ language. Qt is a cross-platform framework with tools designed to streamline the creation of applications and user interfaces. KDE Frameworks is a collection of libraries and software frameworks by KDE that serve as the technological foundation for KDE Plasma 5 and KDE Applications
The format of projects proposal should be in this

Find a project that interests you, look at the technologies used, and understand the idea of the project. If you are comfortable with those, you can clone the source code and install the app by referring the documentation. It covers everything from building the framework to configuring file and run-time setup.
Over the time, you will find missing features that could be useful. Or if you find a bug you can report them or try fixing previously listed bugs which can be found on KDE Bug tracking System Main Page.

If you have an idea of any new functionality that can be added or any new feature, you can go to the mailing list of that specific application, propose the ideas and also get to know more about the developments going under that application. If you don’t get help from there then you can at any time mail your queries on kde-devel@kde.org and you will get a reply within 24 hours.

If you are not familiar with the technologies or you get stuck anywhere, you can read blogs and tutorials, ask for help on the mailing list or IRC, ping the contributors. Always Ask. Do not hesitate. Not even once. If needed ask again enlightening any specific part of your query.

Once you are done with the setup and know well enough about a project you can contact a mentor for the same. You can talk about your idea on IRC or mailing list, interested mentor will get in touch and then you can get started with your project.

KDE — среда рабочего стола

KDE 1) — свободная среда рабочего стола для UNIX-подобных операционных систем, используемая в Kubuntu по-умолчанию. Построена на основе кросс-платформенного инструментария разработки пользовательского интерфейса Qt. Работает преимущественно под UNIX-подобными операционными системами, которые используют графическую подсистему X Window System. Новое поколение технологии KDE 4 частично работает на Microsoft Windows и Mac OS X.
В состав KDE входит набор тесно интегрированных между собой программ для выполнения повседневной работы. Также в рамках проекта разрабатываются интегрированная среда разработки KDevelop и офисный пакет KOffice.
Талисман KDE — зелёный дракон Konqi.
KDE дарит миру открытую и абсолютно свободную от всех ограничений 2) рабочую среду для домашнего или профессионального применения. Эта платформа доступна всем желающим абсолютно бесплатно, включая полные исходные тексты, что дает возможность их модификации. И хотя всегда есть простор для улучшений, разработчики KDE считают, что им уже удалось создать достойную альтернативу некоторым повсеместно используемым в настоящий момент коммерческим операционным системам и рабочим средам. Разработчики надеются, что некий симбиоз Linux и KDE наконец подарит пользователю открытую, надежную, стабильную и свободную от любых монополий компьютерную систему. Систему, которую в течение многих лет с удовольствием используют ученые и IT-профессионалы во всем мире.
В настоящий момент для KDE, помимо интерактивной рабочей среды, создано огромное количество приложений. Часть этих приложений включена в стандартную поставку Kubuntu.

Настройка

Полный текст оригинальной статьи
Основное меню настройки: K-menu 3) → System Settings.
Параметры переключения раскладки: K-menu → System Settings → Input Devices→Keyboard.
Параметры используемых шрифтов: K-menu → System Settings → Application Appearance → Fonts.
Там же, в Application Appearance, есть и раздел где можно настроить размер иконок.
Меню управления эффектами и дополнительными функциями: System Settings → Desktop Effects 4) .
Настройки темы оформления: System Settings → Workspace Appearance → раздел Desktop Theme.
Отключение иконок на кнопках и меню: System Settings → Application Appearance → Style → Fine Tuning.
Отключение системных звуков: System Settings → Application and System Notification → Manage Notification → вкладка Player Settings, пункт “no audio output”.
Настройка автоматического входа пользователя 5) : System Settings → Login Screen → вкладка Convenience.

Решение проблем

Отключение (снятие процесса) Plasma 6) :

Сброс параметров

Сброс параметров Plasma на первичное состояние. Удаление файлов из каталога

/.kde/share/config по шаблону plasma*:

Сброс параметров KDE путём удаления каталога с изменёнными файлами конфигурации возможен путём удаления каталога конфигурации

/.kde 7)

Классическое K-menu

Новый Application Launcher (кнопка K-menu) в силу тех или иных причин может не понравиться пользователю, в таком случае можно вернуть прежний вид:
ПКМ по «K» и выбираем Switch to Classic Menu Style. В этом же контекстном меню есть и опция Edit Applications, позволяющая редактировать само меню, назначать горячие клавиши для запуска разных приложений.

19 лет истории KDE: шаг за шагом

KDE — одна из самых популярных оболочек рабочего стола, когда-либо существовавших. Она является свободной и бесплатной для использования. 19 лет назад, 14 октября 1996 года, немецкий программист Matthias Ettrich начал разработку этого прекрасного окружения. KDE предоставляет оболочку и множество приложений для ежедневного использования. Сегодня KDE используют сотни тысяч человек по всему миру, как на Windows, так и на Unix-подобных ОС. 19 лет — серьёзный срок для проекта. Время вернуться назад и посмотреть, как всё начиналось.

K Desktop Environment имеет в себе несколько новых особенностей: новый дизайн, прекрасный вид, простоту использования и мощные приложения, как для типичной пользовательской работы, так и для особых случаев. Название «KDE» — это игра слов с названием «Common Desktop Environment», K значит «Cool». Первая версия KDE использовала проприетарный QT framework под названием Trolltech (предка нынешнего Qt), с двойной лицензией, свободной QPL (Q public license) и проприетарной. В 2000-м году Trolltech выпустила некоторые Qt библиотеки под лицензией GPL. Qt 4.5 было выпущено под лицензией LGPL 2.1. C 2009 года KDE составляют 3 продукта: Plasma Workspaces (оболочка), KDE Applications (приложения) и KDE Platform.

Пре-Выпуск — 14 Октября, 1996

Kool Desktop Environment. Слово «Kool» исчезнет в будущем. Вначале все компоненты были представлены сообществу разработчиков отдельно, без какой-либо координации. Вся связь происходила через список рассылки под названием kde@fiwi02.wiwi.uni-Tubingen.de.

KDE 1.0 — 12 Июля, 1998

Эта версия получила смешанный приём. Многие критиковали её за использование Qt Framework, который тогда распространялся под лицензией Free Qt, несовместимой со свободными лицензиями, и рекомендовали использовать Motif или LessTif. Несмотря на эту критику, KDE был хорошо принят многими пользователями и таким образом начал свой путь в Linux дистрибутивах.

Обновлённая K Desktop Environment 1.1 была быстрее, стабильнее и включала в себя множество мелких улучшений. Она также включала новый набор иконок, обоев и текстур. Серьезные изменения внешнего вида затронули и логотип: новая версия от Торстена Рана представляла собой букву К с шестеренкой. Этот логотип используется до сих пор с незначительными изменениями.

KDE 2.0 — 23 Октября, 2000

Основные нововведения этой версии:
— DCOP (Desktop COmmunication Protocol), протокол взаимодействия клиент-клиент;
— KIO, библиотека ввода-вывода
и т.д.

26 Февраля 2001

K Desktop Environment 2.1 представил новый модульный медиа-плеер noatun, а также в этом релизе впервые появилась среда разработки KDevlop.

15 Августа 2001

В релиз KDE 2.2 удалось улучшить время запуска приложений на Gnu/Linux системах до 50%. Также некоторые новые возможности были добавлены в KMail.

KDE 3.0 — 3 Апреля, 2002

K Desktop Environment 3.0 получила лучшую поддержку пользовательских ограничений — особенность, необходимая для киосков, Интернет-кафе и в корпоративной среде, когда надо ограничить доступ пользователя к определенным функциям программы.

K Desktop Environment 3.1 получила новое оформление окон (Keramik) и иконок (Crystal) по умолчанию, а также ряд мелких усовершенствований функционала.

K Desktop Environment 3.2 включала новые возможности, такие как проверка орфографии в веб-формах и e-mail сообщениях, улучшала поддержку календаря и e-mail, вкладок браузера Konqueror, а также поддержку Microsoft Windows desktop sharing protocol (RDP) протокола.

19 Августа 2004

K Desktop Environment 3.3 была сосредоточена на интеграции различных компонентов рабочего стола: Kontact было интегрировано с Kolab и Kpilot. Konqueror получил лучшую поддержку IM протоколов (например, IRC) с возможностью отправлять файлы.

K Desktop Environment 3.4 была сосредоточена на улучшение доступности. Обновление добавило в систему возможность преобразования текста в речь с поддержкой в Konqueror, Kate, KPDF. Также появилось автономное приложение KSayIt и возиожность голосового управления рабочим столом.

K Desktop Environment 3.5 получила новую систему под названием SuperKaramba, которая с лёгкостью позволяет установить виджеты рабочего стола. В Konqueror была добавлена поддержка adblock, и он стал первым браузером, который прошёл Acid2 CSS тест.

KDE SC 4.0 – 11 Января, 2008

Большинство усилий было брошено на разработку новых технологий и фреймворка KDE4. Самыми большими нововведениями, которые встретили пользователя, были Plasma и стиль Oxygen. Dolphin заменил собой Konqueror в качестве файлового менеджера, Okular же стал просмотрщиком документов по умолчанию.

KDE 4.1 Включала в себя общую систему смайлов, которые использовались в PIM и Kopete, и DXS, сервис, который позволяет приложениям скачивать и устанавливать данные из интернета в один клик. Также появилась поддержка GStreamer, QuickTime 7, и DirectShow 9 Phonon backends. Были добавлены следующие новые приложения:

— Dragon Player;
— Kontact;
— Skanlite — приложение для сканера;
— Step — симулятор физики.

Новые игры:
— Kdiamond;
— Kollision;
— KBreakout

KDE 4.2 содержала множество улучшений, в сравнении с KDE 4.1 — практически по всем аспектам, и являлась хорошей заменой KDE 3.5 для большинства пользователей.

KDE 4.3 содержала более 10,000 исправлений и реализовывала почти 2,000 улучшений. Интеграция с другими технологиями, такими как PolicyKit, NetworkManager и Geolocation, была одним из основных фокусов этого релиза.

KDE SC 4.4 основывалась на версии Qt 4.6. Было добавлено новое приложение KAddressBook, впервые свет увидел Kopete.

10 Августа 2010

KDE SC 4.5 включала новые возможности: была добавлена поддержка WebKit — открытой реализации движка для браузеров, которая используется в таких браузерах, как Apple Safari и Google Chrome. KPackageKit был заменен на Kpackage.

KDE SC 4.6 получила улучшение в плане поддержки OpenGL наряду с множеством исправлений и улучшений.

KDE SC 4.7 включала обновленный KWin, совместимый c OpenGL ES 2.0, также был добавлен Qt Quick. Plasma Desktop включала в себя множество исправлений, улучшений и новых возможностей. Всего было внесено 12000 исправлений.

KDE SC 4.8: Была улучшена производительность Kwin и поддержка Wayland. Dolphin получил новый дизайн.

KDE SC 4.9: Несколько улучшений в файловом менеджере Dolphin, включая возвращение возможности переименовывать файлы на месте, поддержку кнопок мыши «вперед» и «назад», улучшение панелей файлового менеджера и лучшее управление метаданными файлов.

KDE SC 4.10: Множество виджетов Plasma, используемых по умолчанию, были переписаны на QML; Nepomuk, Kontact и Okular получили значительные улучшения скорости.

14 Августа 2013

KDE SC 4.11: Kontact and Nepomuk были оптимизированы. Первое поколение Plasma Workspaces перешло в стадию maintenance-only.

18 Декабря 2013

KDE SC 4.12: Kontact получило значительные улучшения, было сделано множество мелких улучшений.

18 Декабря 2013

KDE SC 4.13: семантический поиск Nepomuk был заменен на Baloo. KDE SC 4.13 было выпущено с поддержкой 53 различных языков.

KDE SC 4.14: релиз был сфокусирован на стабильности, с некоторым количеством исправлений и новых возможностей. Это был последний KDE SC 4 релиз.

KDE Plasma 5.0 – 15 Июля, 2014

KDE Plasma 5 — 5 поколение KDE. Массивные улучшения в дизайне и системе. Новая тема по умолчанию — Breeze, полный переход на QML, улучшена производительность OpenGL, улучшена поддержка HiDPI дисплеев.

KDE Plasma 5.1: Портированы некоторые возможности из Plasma 4.

KDE Plasma 5.2: Новые компоненты: BlueDevil, KSSHAskPass, Muon, конфигуратор темы SDDM, KScreen, конфигурация темы GTK+ и KDecoration.

KDE Plasma 5.3: Технический preview для Plasma Media Center. Новые Bluetooth и touchpad апплеты. Улучшено управление питанием.

25 Августа 2015

KDE Plasma 5.4: Начата поддержка Wayland-сессий, новый апплет громкости, написанный на QML, возможность запуска приложений в полноэкранном режиме.
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