KDE: Difference between revisions
imported>Lumarius (The example for installing a Qt theme using Kvantum uses Home Manager.) |
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== Installation == | == Installation == | ||
=== Plasma 6 === | |||
{{file|/etc/nixos/configuration.nix|nix|<nowiki> | |||
{ | |||
services.xserver.enable = true; | |||
services.displayManager.sddm.enable = true; | |||
services.displayManager.sddm.wayland.enable = true; | |||
services.desktopManager.plasma6.enable = true; | |||
} | |||
</nowiki>}} | |||
=== Plasma 5 === | |||
{{file|/etc/nixos/configuration.nix|nix|<nowiki> | |||
{ | |||
services.xserver.enable = true; | |||
services.displayManager.sddm.enable = true; | |||
services.xserver.desktopManager.plasma5.enable = true; | |||
} | |||
</nowiki>}} | |||
== Configuration == | |||
=== Rootless X11 === | |||
{{ic|sddm}} launches X11 as a root user by default. For better security, X11 can be run as a non-root user but using Wayland is preferred and better tested: | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
services.xserver.displayManager.sddm.settings.General.DisplayServer = "x11-user"; | |||
services.xserver.displayManager.sddm. | |||
</syntaxHighlight> | </syntaxHighlight> | ||
=== Excluding | === Excluding applications from the default install === | ||
Some optional packages that are installed by default can be excluded if they are not needed. | |||
==== Plasma 5 ==== | ==== Plasma 5 ==== | ||
Optional packages: [https://github.com/NixOS/nixpkgs/blob/nixos-23.11/nixos/modules/services/x11/desktop-managers/plasma5.nix#L275-L284 plasma5.nix] | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
Line 28: | Line 51: | ||
==== Plasma 6 ==== | ==== Plasma 6 ==== | ||
Optional packages: [https://github.com/NixOS/nixpkgs/blob/ff0dbd94265ac470dda06a657d5fe49de93b4599/nixos/modules/services/desktop-managers/plasma6.nix#L153-L165 plasma6.nix] | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
Line 33: | Line 58: | ||
plasma-browser-integration | plasma-browser-integration | ||
konsole | konsole | ||
elisa | |||
]; | ]; | ||
</syntaxHighlight> | </syntaxHighlight> | ||
=== GNOME desktop integration === | === GNOME desktop integration === | ||
Line 43: | Line 66: | ||
Using the following example configuration, QT applications will have a look similar to the [[GNOME]] desktop, using a dark theme. | Using the following example configuration, QT applications will have a look similar to the [[GNOME]] desktop, using a dark theme. | ||
< | <syntaxhighlight lang="nix"> | ||
qt = { | qt = { | ||
enable = true; | enable = true; | ||
platformTheme = "gnome"; | platformTheme = "gnome"; | ||
style = "adwaita-dark"; | style.name = "adwaita-dark"; | ||
}; | }; | ||
</ | </syntaxhighlight> | ||
For other themes, you may need the packages <code>libsForQt5.qt5ct</code> and <code>libsForQt5.qtstyleplugin-kvantum</code> and a symlink from <code>~/.config/Kvantum/</code> to your theme package. Here is an example using Arc-Dark and [[Home Manager]]. In the Home Manager configuration: | For other themes, you may need the packages <code>libsForQt5.qt5ct</code> and <code>libsForQt5.qtstyleplugin-kvantum</code> and a symlink from <code>~/.config/Kvantum/</code> to your theme package. Here is an example using Arc-Dark and [[Home Manager]]. In the Home Manager configuration: | ||
Line 68: | Line 91: | ||
For more details, see [https://discourse.nixos.org/t/guide-to-installing-qt-theme/35523/2 this] forum post. | For more details, see [https://discourse.nixos.org/t/guide-to-installing-qt-theme/35523/2 this] forum post. | ||
== | === Default Wayland/X11 session === | ||
=== | ==== Plasma 5 ==== | ||
Plasma 5 runs on X11 by default and it is recommend to use Plasma 6 for Wayland instead. To launch a Wayland session by default anyway: | |||
<syntaxHighlight lang= | <syntaxHighlight lang=nix> | ||
services.xserver.displayManager.defaultSession = "plasmawayland"; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
=== | ==== Plasma 6 ==== | ||
Plasma 6 runs on Wayland by default. To launch an X11 session by default: | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
services.xserver.displayManager.defaultSession = "plasmax11"; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
==== SDDM on Wayland ==== | |||
=== | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
services.xserver.displayManager.sddm.wayland.enable = true; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
== Troubleshooting == | |||
=== | === Qt/KDE applications segfault on start === | ||
This is caused by a stale QML cache [https://github.com/NixOS/nixpkgs/issues/177720 (see this issue)]. A dirty way to fix this is by running on a terminal the following command: | |||
<syntaxHighlight lang= | <syntaxHighlight lang=sh> | ||
find ${XDG_CACHE_HOME:-$HOME/.cache}/**/qmlcache -type f -delete | |||
</syntaxHighlight> | </syntaxHighlight> | ||
=== | === GTK themes are not applied in Wayland applications / Window Decorations missing / Cursor looks different === | ||
This affects GTK applications including Firefox and Thunderbird. | |||
If youvare using Plasma 5, add to your configuration.nix the following line: | |||
<syntaxHighlight lang=nix> | <syntaxHighlight lang=nix> | ||
programs.dconf.enable = true; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
You might also need to set a GTK theme ''Breeze'' imitating the KDE theme with the same name in ''System Settings -> Application Style -->Configure GNOME/GTK Application Style''. | |||
[https://github.com/NixOS/nixpkgs/issues/180720 (See this issue)] | |||
== Tips and tricks == | |||
=== Plasma-Manager === | === Plasma-Manager === | ||
{{note| [https://github.com/pjones/plasma-manager Plasma-Manager] is not matured yet and | {{note| [https://github.com/pjones/plasma-manager Plasma-Manager] is not matured yet and unofficial community project}} | ||
By default, the Plasma configuration can be handled like on [https://wiki.archlinux.org/title/KDE traditional systems]. | By default, the Plasma configuration can be handled like on [https://wiki.archlinux.org/title/KDE traditional systems]. | ||
With [https://github.com/pjones/plasma-manager plasma-manager], it is possible to make Plasma configurations via nix by providing [https://github.com/nix-community/home-manager home-manager] modules. | With [https://github.com/pjones/plasma-manager plasma-manager], it is possible to make Plasma configurations via nix by providing [https://github.com/nix-community/home-manager home-manager] modules. | ||
[[Category:Desktop environment]] | [[Category:Desktop environment]] | ||
[[Category:Applications]] | [[Category:Applications]] |
Latest revision as of 07:14, 25 June 2024
KDE Plasma is a desktop environment that aims to be simple by default, powerful when needed.
Installation
Plasma 6
![](/w/images/e/ef/Breeze-text-x-plain.png)
/etc/nixos/configuration.nix
{
services.xserver.enable = true;
services.displayManager.sddm.enable = true;
services.displayManager.sddm.wayland.enable = true;
services.desktopManager.plasma6.enable = true;
}
Plasma 5
![](/w/images/e/ef/Breeze-text-x-plain.png)
/etc/nixos/configuration.nix
{
services.xserver.enable = true;
services.displayManager.sddm.enable = true;
services.xserver.desktopManager.plasma5.enable = true;
}
Configuration
Rootless X11
sddm
launches X11 as a root user by default. For better security, X11 can be run as a non-root user but using Wayland is preferred and better tested:
services.xserver.displayManager.sddm.settings.General.DisplayServer = "x11-user";
Excluding applications from the default install
Some optional packages that are installed by default can be excluded if they are not needed.
Plasma 5
Optional packages: plasma5.nix
environment.plasma5.excludePackages = with pkgs.libsForQt5; [
plasma-browser-integration
konsole
oxygen
];
Plasma 6
Optional packages: plasma6.nix
environment.plasma6.excludePackages = with pkgs.kdePackages; [
plasma-browser-integration
konsole
elisa
];
GNOME desktop integration
Using the following example configuration, QT applications will have a look similar to the GNOME desktop, using a dark theme.
qt = {
enable = true;
platformTheme = "gnome";
style.name = "adwaita-dark";
};
For other themes, you may need the packages libsForQt5.qt5ct
and libsForQt5.qtstyleplugin-kvantum
and a symlink from ~/.config/Kvantum/
to your theme package. Here is an example using Arc-Dark and Home Manager. In the Home Manager configuration:
qt = {
enable = true;
platformTheme = "qtct";
style.name = "kvantum";
};
xdg.configFile = {
"Kvantum/ArcDark".source = "${pkgs.arc-kde-theme}/share/Kvantum/ArcDark";
"Kvantum/kvantum.kvconfig".text = "[General]\ntheme=ArcDark";
};
For more details, see this forum post.
Default Wayland/X11 session
Plasma 5
Plasma 5 runs on X11 by default and it is recommend to use Plasma 6 for Wayland instead. To launch a Wayland session by default anyway:
services.xserver.displayManager.defaultSession = "plasmawayland";
Plasma 6
Plasma 6 runs on Wayland by default. To launch an X11 session by default:
services.xserver.displayManager.defaultSession = "plasmax11";
SDDM on Wayland
services.xserver.displayManager.sddm.wayland.enable = true;
Troubleshooting
Qt/KDE applications segfault on start
This is caused by a stale QML cache (see this issue). A dirty way to fix this is by running on a terminal the following command:
find ${XDG_CACHE_HOME:-$HOME/.cache}/**/qmlcache -type f -delete
GTK themes are not applied in Wayland applications / Window Decorations missing / Cursor looks different
This affects GTK applications including Firefox and Thunderbird.
If youvare using Plasma 5, add to your configuration.nix the following line:
programs.dconf.enable = true;
You might also need to set a GTK theme Breeze imitating the KDE theme with the same name in System Settings -> Application Style -->Configure GNOME/GTK Application Style.
Tips and tricks
Plasma-Manager
By default, the Plasma configuration can be handled like on traditional systems. With plasma-manager, it is possible to make Plasma configurations via nix by providing home-manager modules.