[Desktop/(Plasma+SDDM)] migrate SDDM to its own config files + fix SDDM Wayland on Nvidia drivers!

desktop/default.nix

@@ -11,5 +11,6 @@ with lib;
     ./gnome.nix
     ./printing.nix
     ./flatpak.nix
+    ./sddm.nix
   ];
 }

desktop/plasma.nix

@@ -1,13 +1,9 @@
-{config, pkgs, lib, sddm-unstable, ...}:
+{config, pkgs, nixpkgs-unstable, lib, ...}:
 with lib;
 let
   cfg = config.aviallon.desktop;
   optimizeCfg = config.aviallon.optimizations;
-  _sddm = if cfg.sddm.unstable then pkgs.unstable.sddm else pkgs.sddm;
-  sddmOptimized = optimizeCfg.optimizePkg { recursive = 0; } _sddm;
-  sddmPackage = if optimizeCfg.enable then sddmOptimized else _sddm;
 in {
-  options.aviallon.desktop.sddm.unstable = mkEnableOption (mdDoc "bleeding-edge SDDM");
 
   config = mkIf (cfg.enable && (cfg.environment == "plasma")) {
     # Enable the Plasma 5 Desktop Environment.
@@ -22,10 +18,6 @@ in {
       # supportDDC = true;
     };
 
-    systemd.tmpfiles.rules = mkAfter [
-      "e ${config.users.users.sddm.home}/.cache/sddm-greeter/qmlcache/ - - - 0"
-      "x ${config.users.users.sddm.home}/.cache"
-    ];
     programs.firefox.enable = true;
 
     # Already brought in by ${nixpkgs}/nixos/modules/services/x11/desktop-managers/plasma5.nix
@@ -35,48 +27,15 @@ in {
 
     environment.etc = {
       "chromium/native-messaging-hosts/org.kde.plasma.browser_integration.json".source = 
-        "${pkgs.plasma-browser-integration}/etc/chromium/native-messaging-hosts/org.kde.plasma.browser_integration.json";
+        "${pkgs.libsForQt5.plasma-browser-integration}/etc/chromium/native-messaging-hosts/org.kde.plasma.browser_integration.json";
     };
 
     programs.chromium.extensions = [
       "cimiefiiaegbelhefglklhhakcgmhkai" # Plasma Browser Integration
     ];
 
-    # Prevents blinking cursor
+    aviallon.desktop.sddm.enable = true;
-    services.xserver.displayManager.sddm = {
+    
-      enable = true;
-      wayland.enable = mkDefault true;
-      settings = {
-        Theme = {
-          CursorTheme = "breeze_cursors";
-        };
-        X11 = {
-          MinimumVT = mkOverride 50 1;
-        };
-      };
-    };
-
-    systemd.services.display-manager = {
-      serviceConfig = {
-        Restart = mkOverride 50 "on-failure";
-        TimeoutStopSec = 10;
-        SendSIGHUP = true;
-      };
-      after = [
-        "getty@tty1.service"
-      ];
-      conflicts = [
-        "getty@tty1.service"
-      ];
-    };
-
-    nixpkgs.overlays = [(final: prev: { mySddm = sddmPackage; } )];
-
-    services.xserver.displayManager.job = {
-      execCmd = mkOverride 2 "exec ${sddmPackage}/bin/sddm";
-    };
-
-
     environment.systemPackages = with pkgs; with libsForQt5; [
       skanpage
       packagekit-qt

desktop/sddm-unstable.nix

@@ -0,0 +1,25 @@
+{ config, nixpkgs-unstable, lib, pkgs, ... }:
+with lib;
+let
+  cfg = config.aviallon.desktop;
+in {
+  disabledModules = [ "services/x11/display-managers/sddm.nix" ];
+
+  imports = [
+    (import (nixpkgs-unstable + /nixos/modules/services/x11/display-managers/sddm.nix))
+  ];
+
+  config = {
+    services.xserver.displayManager.sddm.wayland.compositor = "kwin";
+  
+    nixpkgs.overlays = [
+      (final: prev: {
+        sddm = final.libsForQt5.sddm;
+        libsForQt5 = prev.libsForQt5.overrideScope (f: p: {
+          sddm = f.callPackage (import (nixpkgs-unstable + /pkgs/applications/display-managers/sddm)) {};
+        });
+        kdePackages = final.libsForQt5;
+      })
+    ];
+  };
+}

desktop/sddm.nix

@@ -0,0 +1,55 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  cfg = config.aviallon.desktop;
+  sddmCfg = config.services.xserver.displayManager.sddm;
+in {
+  options.aviallon.desktop.sddm.unstable = mkEnableOption "bleeding-edge SDDM";
+  options.aviallon.desktop.sddm.enable = mkEnableOption "custom SDDM configuration";
+
+  imports = [ ./sddm-unstable.nix ];
+
+  config = mkIf cfg.sddm.enable {
+
+    # Delete SDDM QMLCache
+    systemd.tmpfiles.rules = mkAfter [
+      "e ${config.users.users.sddm.home}/.cache/sddm-greeter/qmlcache/ - - - 0"
+    ];
+  
+    # Prevents blinking cursor
+    services.xserver.displayManager.sddm = {
+      enable = true;
+      wayland.enable = mkDefault true;
+      settings = {
+        /*General.GreeterEnvironment = mkIf sddmCfg.wayland.enable (concatStringsSep "," [
+          "QT_WAYLAND_SHELL_INTEGRATION=layer-shell"
+          "QT_QPA_PLATFORM=wayland"
+        ]);*/
+        Theme = {
+          CursorTheme = "breeze_cursors";
+        };
+        /*Wayland = mkIf sddmCfg.wayland.enable {
+          CompositorCommand = mkOverride 60 "${pkgs.libsForQt5.kwin}/bin/kwin_wayland --drm --no-lockscreen --no-global-shortcuts --locale1";
+        };*/
+      };
+    };
+  
+    systemd.services.display-manager = {
+      serviceConfig = {
+        Restart = mkOverride 50 "on-failure";
+        TimeoutStopSec = 10;
+        SendSIGHUP = true;
+      };
+      after = [
+        "getty@tty1.service"
+      ];
+      conflicts = [
+        "getty@tty1.service"
+      ];
+    };
+
+    #services.xserver.displayManager.job = mkIf config.services.xserver.displayManager.sddm.enable {
+    #  execCmd = mkOverride 2 "exec ${sddmPackage}/bin/sddm";
+    #};
+  };
+}