1 files changed, 16 insertions, 9 deletions
diff --git a/nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix b/nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix
index d8dc2675f068..11cb4d3b8a95 100644
--- a/nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix
+++ b/nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix
@@ -13,7 +13,6 @@ let
 
   pulseaudio = config.hardware.pulseaudio;
   pactl = "${getBin pulseaudio.package}/bin/pactl";
-  startplasma-x11 = "${getBin plasma5.plasma-workspace}/bin/startplasma-x11";
   sed = "${getBin pkgs.gnused}/bin/sed";
 
   gtkrc2 = writeText "gtkrc-2.0" ''
@@ -136,9 +135,6 @@ let
           fi
       fi
 
-    ''
-    + ''
-      exec "${startplasma-x11}"
     '';
 
 in
@@ -172,6 +168,12 @@ in
           disabled by default.
         '';
       };
+
+      useQtScaling = mkOption {
+        type = types.bool;
+        default = false;
+        description = "Enable HiDPI scaling in Qt.";
+      };
     };
 
   };
@@ -183,6 +185,7 @@ in
 
   config = mkMerge [
     (mkIf cfg.enable {
+
       # Seed our configuration into nixos-generate-config
       system.nixos-generate-config.desktopConfiguration = [''
         # Enable the Plasma 5 Desktop Environment.
@@ -190,11 +193,7 @@ in
         services.xserver.desktopManager.plasma5.enable = true;
       ''];
 
-      services.xserver.desktopManager.session = singleton {
-        name = "plasma5";
-        bgSupport = true;
-        start = startplasma;
-      };
+      services.xserver.displayManager.sessionPackages = [ pkgs.libsForQt5.plasma5.plasma-workspace ];
 
       security.wrappers = {
         kcheckpass =
@@ -264,6 +263,7 @@ in
           kwallet-pam
           kwalletmanager
           kwayland
+          kwayland-integration
           kwidgetsaddons
           kxmlgui
           kxmlrpcclient
@@ -319,6 +319,10 @@ in
           qtvirtualkeyboard
 
           pkgs.xdg-user-dirs # Update user dirs as described in https://freedesktop.org/wiki/Software/xdg-user-dirs/
+
+          elisa
+          gwenview
+          okular
         ]
 
         # Phonon audio backend
@@ -342,6 +346,8 @@ in
 
       environment.etc."X11/xkb".source = xcfg.xkbDir;
 
+      environment.sessionVariables.PLASMA_USE_QT_SCALING = mkIf cfg.useQtScaling "1";
+
       # Enable GTK applications to load SVG icons
       services.xserver.gdk-pixbuf.modulePackages = [ pkgs.librsvg ];
 
@@ -384,6 +390,7 @@ in
 
       # Update the start menu for each user that is currently logged in
       system.userActivationScripts.plasmaSetup = activationScript;
+      services.xserver.displayManager.setupCommands = startplasma;
 
       nixpkgs.config.firefox.enablePlasmaBrowserIntegration = true;
     })