KDE is a free software community, producing a wide range of applications including the popular Plasma desktop environment.
Gentoo support for the KDE project is excellent, with comprehensive packaging of KDE Frameworks 5, Plasma 5, and Applications, as well as a wide array of other miscellaneous KDE-based software.
- 1 Prerequisites
- 2 Plasma
- 3 Applications
- 4 Frameworks
- 5 More KDE software
- 6 Troubleshooting
- 7 See also
- 8 External links
- 9 References
Choosing an appropriate profile, although not required, is recommended as it sets a number of global and package-specific USE flags to ease installation and ensure a smooth KDE experience.
In order to choose the most suitable profile, first list what's available:
eselect profile list
...  default/linux/amd64/17.0 (stable)  default/linux/amd64/17.0/selinux (stable)  default/linux/amd64/17.0/hardened (stable)  default/linux/amd64/17.0/hardened/selinux (stable)  default/linux/amd64/17.0/desktop (stable)  default/linux/amd64/17.0/desktop/gnome (stable)  default/linux/amd64/17.0/desktop/gnome/systemd (stable)  default/linux/amd64/17.0/desktop/plasma (stable)  default/linux/amd64/17.0/desktop/plasma/systemd (stable) ...
Then, select the right profile, substituting
X with the appropriate profile number:
eselect profile set X
Before installing KDE related software it is recommended that several other services are set up first. Part of those are installed automatically if a desktop/plasma or desktop profile is used, but still need to be set up properly. These services are:
- D-Bus: Enables use of the D-Bus message bus system.
- polkit: Enables the polkit framework for controlling privileges for system-wide services.
- udisks: Enables support for some storage related services.
Choose one of:
- eudev: Gentoo's fork of udev with the goal of obtaining better compatibility. It is the default for the desktop/plasma profile.
- udev: Enables support for udev Linux dynamic and persistent device naming.
- systemd: Uses the device manager part of systemd. Users of systemd do not need to take any other initiative here.
Choose one of:
- ConsoleKit: Framework for defining and tracking users, login sessions, and seats. It is the default for the desktop/plasma profile.
- elogind: Standalone logind package extracted from systemd project for use with OpenRC or other init systems.
- systemd: Uses the session tracker part of systemd. Users of systemd do not need to take any other initiative here.
Follow the links for information how to set up these services. Note that other USE flag combinations than set in this profile may technically be possible (especially if selected applications are run instead of a full KDE Plasma desktop environment), but may be unsupported, untested, or lead to unexpected loss of functionality.
Read and follow the instructions in the X server article to setup the X environment.
KDE Plasma and Applications come with many dependencies. Some of these dependencies will predetermine package choices where otherwise there would be options to choose from.
- FFmpeg: By default, dev-qt/qtwebengine has USE
system-ffmpegenabled, making it depend on media-video/ffmpeg. Users preferring media-video/libav for the rest of their system will need to switch off that flag.
- JPEG: Since 5.11.1, dev-qt/qtwebengine depends on media-libs/libjpeg-turbo. It is Gentoo's recommended default over media-libs/jpeg anyway.
Plasma 5 is the current generation of KDE's desktop environment, based on Qt 5 and KDE Frameworks 5.
|KDE Plasma 5.12.5||kde-plasma/plasma-meta-5.12.5||gentoo||Stable for amd64 and x86; Testing for arm|
|KDE Plasma 5.12.6||kde-plasma/plasma-meta-5.12.6||gentoo||Testing for amd64, arm, arm64 and x86|
|KDE Plasma 5.12 stable branch||kde-plasma/plasma-meta-220.127.116.1199||KDE||Live version|
|KDE Plasma 5.13.4||kde-plasma/plasma-meta-5.13.4||gentoo||Testing for amd64, arm, arm64 and x86|
|KDE Plasma 5.13 stable branch||kde-plasma/plasma-meta-18.104.22.16899||KDE||Live version|
|KDE Plasma master branch||kde-plasma/plasma-meta-9999||KDE||Live version|
Before proceeding, make sure to choose a Plasma profile.
The kde-plasma/plasma-meta package provides the full Plasma 5 suite, configured by the following USE flags:
USE flags for kde-plasma/plasma-meta Merge this to pull in all Plasma 5 packages
||Enable integration with Chrome/Firefox with browser extensions||local|
||Pull in kde-plasma/plasma-vault for encrypted vaults integration||local|
||Pull in a graphical display manager||local|
||Pull in Breeze theme for sys-boot/grub||local|
||Enable Breeze widget style and KCM for GTK2 and GTK3||local|
||Enable handbooks generation for packages by KDE||global|
||Add support for GTK+ applications using legacy xembed systray icons||local|
||Enable net-misc/networkmanager support||global|
||Enable support for kwallet auto-unlocking||local|
||Pull in Breeze theme for sys-boot/plymouth||local|
||Install Plasma applet for PulseAudio volume management||local|
||Pull in the x11-misc/sddm display manager and KCM||local|
||Pull in kde-plasma/plasma-sdk for Plasma development||local|
||Install wallpapers for the Plasma Workspace||local|
emerge --ask kde-plasma/plasma-meta
Alternatively, kde-plasma/plasma-desktop provides the basic desktop, leaving users free to install only the extra packages they require:
emerge --ask kde-plasma/plasma-desktop
Please note that such installations will be missing important packages such as kde-plasma/powerdevil (power management, suspend and hibernate options) and kde-plasma/systemsettings if this alternative installation is used.
By default the classic tree view of kde-plasma/systemsettings is not enabled. The following USE flag will enable it:
Recompile systemsettings with new USE flags:
emerge --ask --changed-use kde-plasma/systemsettings
emerge --ask kde-plasma/kdeplasma-addons
SDDM (Simple Desktop Display Manager) is the recommended login manager and is pulled in automatically via kde-plasma/plasma-meta by default. This is the preferred option. Alternatively, LightDM can be used and pulled in by setting USE flag
-sddm for kde-plasma/plasma-meta. Change the setting accordingly in /etc/conf.d/xdm. Also, be sure to read through the SDDM page if further issues appear.
No display manager
Plasma can be started the old-fashioned way with startx, but extra care needs to be taken to ensure it gets a valid session. The following solution is limited to ConsoleKit:
#!/bin/sh exec ck-launch-session dbus-launch --sh-syntax --exit-with-session startkde
Plasma 5 uses the StatusNotifier specification for systray icons . As not all applications have been ported to the new system, some workarounds exist , and Plasma 5 has a means to convert old xembed-based system tray icons to StatusNotifier icons.
Legacy support is enabled by activating
legacy-systray and GUI-specific USE flags for kde-plasma/plasma-meta.
echo "kde-plasma/plasma-meta legacy-systray gtk" >> /etc/portage/package.use/plasma-systray
These flags pull in dev-libs/libappindicator SLOT 2 for GTK+ 2 and SLOT 3 for GTK+ 3.
For managing KWallets, importing and exporting passwords, there is kde-apps/kwalletmanager:
emerge --ask kde-apps/kwalletmanager
kde-plasma/kwallet-pam provides a mechanism to avoid being subsequently asked for access to kwallet after login.
emerge --ask kde-plasma/kwallet-pam
It requires the following setup:
- For KWallet security, use classic blowfish encryption instead of GPG
- Choose same password for login and kwallet
- Configure a display manager with support for PAM - both x11-misc/sddm and x11-misc/lightdm fulfill that requirement:
-auth optional pam_kwallet5.so -session optional pam_kwallet5.so auto_start
For LightDM, /etc/pam.d/lightdm needs to be edited instead.
If the filesystem containing your user's KWallet files is mounted by pam_mount upon logging on, you may need to copy ~/.local/share/kwalletd/kdewallet.salt to the same path on your root filesystem. Otherwise, PAM attempts to unlock KWallet before the home directory is available and fails. The file ~/.local/share/kwalletd/kdewallet.kwl which actually contains the encrypted KWallet passwords does not need to be copied.
To disable the KWallet subsystem completely, edit the following file:
SSH/GPG Agent startup/shutdown scripts
ssh-agent scripts are located in /etc/plasma/startup and /etc/plasma/shutdown. The Keychain article provides more information about this.
Run GUI applications with root privileges
It could be a very bad idea to start GUI applications with root privileges, versus adding the regular user to the relevant group or simply just running the command unprivileged. Only use kdesu when absolutely necessary.
KDE Plasma has a utility in order to start graphical programs with root privileges. It is provided by kde-plasma/kde-cli-tools - if built with USE flag
kdesu, a graphical frontend to kde-frameworks/kdesu is installed, which can be used by invoking kdesu. This can be done either from KRunner or a terminal emulator:
A message dialog will be displayed prompting for the root password.
Some applications such as kwrite, dolphin etc. refuse to be opened with kdesu for security reasons.
Releases consist of various applications and supporting libraries based on Qt 5/KDE Frameworks 5.
|KDE Applications 18.04.3||kde-apps/kde-apps-meta-18.04.3||gentoo||Stable for amd64 and x86|
|KDE Applications 18.08 stable branch||kde-apps/kde-apps-meta-18.04.49.9999||KDE||Live version|
|KDE Applications master branch||kde-apps/kde-apps-meta-9999||KDE||Live version|
KDE Applications is divided in the following meta packages:
|kde-apps/kdeaccessibility-meta||Accessibility applications and utilities.|
|kde-apps/kdeadmin-meta||Administrative utilities, which helps in managing the system.|
|kde-apps/kdecore-meta||Basic applications such as file browser, editor, terminal emulator.|
|kde-apps/kdeedu-meta||Educational applications and games.|
|kde-apps/kdegames-meta||Standard desktop games.|
|kde-apps/kdegraphics-meta||Graphics applications such as image viewers, color pickers, etc.|
|kde-apps/kdemultimedia-meta||Audio and video playback applications and services.|
|kde-apps/kdenetwork-meta||Network applications and VNC services.|
|kde-apps/kdepim-meta||PIM applications such as emailer, addressbook, organizer, etc.|
|kde-apps/kdesdk-meta||Various development tools.|
|kde-apps/kdeutils-meta||Standard desktop utilities such as a archiver, a calculator, etc.|
The kde-apps/kde-apps-meta package provides the full Applications bundle, but alternatively, one or several smaller meta packages from the list above may be picked instead:
emerge --ask kde-apps/kde-apps-meta
Plasma-5 and Applications are shipping their localization per-package. Enable your localization in systemsettings.
KDE PIM is a whole suite of applications to manage personal information including mail, calendar, contacts and more. It has several optional runtime dependencies to extend its functionality:
- Virus detection: app-antivirus/clamav
- Spam filtering: mail-filter/bogofilter or mail-filter/spamassassin
KDE Frameworks 5 is a collection of libraries and software frameworks that provide the foundation for KDE Plasma 5 and KDE Applications, but may be leveraged by any Qt application.
As Frameworks are mostly libraries and provide little user functionality, it's not necessary to install them manually - the required packages will be pulled in automatically as dependencies.
|KDE Frameworks 5.46.0||kde-frameworks/*-5.46.0||gentoo||Stable for amd64 and x86, Testing for arm|
|KDE Frameworks 5.49.0||kde-frameworks/*-5.49.0||gentoo||Testing for amd64, arm and x86|
|KDE Frameworks master branch||kde-frameworks/*-9999||KDE||Live version|
More KDE software
Refer to the Troubleshooting sub-article.
- Plasma 4 to 5 upgrade page - Information on how to upgrade from Plasma 4, migration and troubleshooting.
- KDE/Ebuild repository — provides instructions on adding Gentoo's KDE ebuild development repository to a system.
- kde-sunset ebuild repository - For old KDE software that has been removed from the main ebuild repository.