[z790prors] Enable HDR in plasma 6.2

machines/z790prors/hardware-configuration.nix

@@ -33,6 +33,18 @@
     open = false;
     nvidiaSettings = true;
     package = config.boot.kernelPackages.nvidiaPackages.production;
+    #package = config.boot.kernelPackages.nvidiaPackages.mkDriver {
+      #version = "555.58";
+
+      #sha256_64bit = "sha256-bXvcXkg2kQZuCNKRZM5QoTaTjF4l2TtrsKUvyicj5ew=";
+      #sha256_aarch64 = lib.fakeSha256;
+      #openSha256 = lib.fakeSha256;
+      #settingsSha256 = "sha256-vWnrXlBCb3K5uVkDFmJDVq51wrCoqgPF03lSjZOuU8M=";
+      #persistencedSha256 = lib.fakeSha256;
+    #};
+  };
+  environment.sessionVariables = {
+    KWIN_DRM_ALLOW_NVIDIA_COLORSPACE = "1";
   };
 
   fileSystems."/" =