KDE: Difference between revisions

KDE (view source)

Revision as of 11:17, 5 May 2024

3,076 bytes added , 5 May

m

→‎Plasma 6

VisualWikitext

Vater

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 KDE Plasma is a desktop environment that aims to be simple by default, powerful when needed.
-== Installing KDE Plasma ==
+== Installation ==
-To use KDE Plasma, add this to your configuration.nix:
+=== Plasma 5 ===
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+{
+  services.xserver.enable = true;
+  services.xserver.displayManager.sddm.enable = true;
+  services.xserver.desktopManager.plasma5.enable = true;
+}
+</nowiki>}}
+=== Plasma 6 ===
+Available on the unstable channel.
+{{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>}}
+== Configuration ==
+=== Rootless X11 ===
+{{ic|sddm}} launches X11 as a root user by default. For better security, X11 should be run as a non-root user:
 <syntaxHighlight lang=nix>
-services.xserver.enable = true;
+services.xserver.displayManager.sddm.settings.General.DisplayServer = "x11-user";
-services.xserver.displayManager.sddm.enable = true;
-services.xserver.desktopManager.plasma5.enable = true;
 </syntaxHighlight>
-== Excluding some KDE Plasma applications from the default install ==
+=== Excluding applications from the default install ===
-Not all applications that come pre-installed with the KDE Plasma desktop environment are desirable for everyone to have on their machines. There's a way to edit configuration.nix to exclude these kinds of packages, for example as follows:
+Some optional packages that are installed by default can be excluded if they are not needed.
+==== 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>
 environment.plasma5.excludePackages = with pkgs.libsForQt5; [
-   elisa
+   plasma-browser-integration
-   gwenview
+   konsole
-  okular
    oxygen
-   khelpcenter
+];
+</syntaxHighlight>
+==== 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>
+environment.plasma6.excludePackages = with pkgs.kdePackages; [
+   plasma-browser-integration
    konsole
-   plasma-browser-integration
+   elisa
-  print-manager
 ];
 </syntaxHighlight>
+=== GNOME desktop integration ===
+Using the following example configuration, QT applications will have a look similar to the [[GNOME]] desktop, using a dark theme.
+<syntaxHighlight lang=nix>
+qt = {
+  enable = true;
+  platformTheme = "gnome";
+  style = "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:
+<syntaxHighlight lang=nix>
+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";
+};
+</syntaxHighlight>
+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. To launch a Wayland session by default:
+<syntaxHighlight lang=nix>
+services.xserver.displayManager.defaultSession = "plasmawayland";
+</syntaxHighlight>
+==== Plasma 6 ====
+Plasma 6 runs on Wayland by default. To launch an X11 session by default:
+<syntaxHighlight lang=nix>
+services.xserver.displayManager.defaultSession = "plasmax11";
+</syntaxHighlight>
+==== SDDM on Wayland ====
+<syntaxHighlight lang=nix>
+services.xserver.displayManager.sddm.wayland.enable = true;
+</syntaxHighlight>
+== Troubleshooting ==
-== Troubleshoots ==
 === 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:
@@ Line 36: / Line 127: @@
 </syntaxHighlight>
-=== GTK themes are not applied in Wayland applications ===
+=== GTK themes are not applied in Wayland applications / Window Decorations missing / Cursor looks different ===
+This affects GTK applications including Firefox and Thunderbird.
 Add to your configuration.nix the following line:
@@ Line 42: / Line 135: @@
 programs.dconf.enable = true;
 </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)]
@@ Line 57: / Line 152: @@
 [https://github.com/NixOS/nixpkgs/issues/160599 (See this issue)]
-=== Launch KDE in Wayland session ===
+== Tips and tricks ==
-<syntaxHighlight lang=nix>
-services.xserver.displayManager.defaultSession = "plasmawayland";
-</syntaxHighlight>
+=== Plasma-Manager ===
+{{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].
+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:Applications]]