improvements

modules/nixos/hardware/fv43u.nix

@@ -17,15 +17,42 @@ in
 
   config = mkIf cfg.enable {
     fonts.fontconfig.subpixel.rgba = "bgr";
-    hardware.gbmonctl.enable = true;
-    boot.kernelParams = [ "video=3840x2160@144" ];
+    hardware = {
+      gbmonctl.enable = true;
+      firmware = [
+        (pkgs.runCommandNoCC "fv43u_edid" { } ''
+          mkdir -p $out/lib/firmware/edid
+          cp ${./fv43u_edid.bin} $out/lib/firmware/edid/fv43u.bin
+        '')
+      ];
+    };
+    boot = {
+      kernelParams = [
+        "drm.edid_firmware=DP-3:edid/fv43u.bin"
+        "video=DP-3:3840x2160-30@144"
+      ];
+      initrd.extraFiles."lib/firmware/edid/fv43u.bin".source =
+        pkgs.runCommandLocal "fv43u_edid" { }
+          "cp ${./fv43u_edid.bin} $out";
+    };
+    services.colord.enable = true;
+    environment.systemPackages = [
+      (pkgs.runCommandNoCC "fv43u_icc" { } ''
+        mkdir -p $out/share/color/icc
+        cp ${./fv43u.icc} $out/share/color/icc/fv43u.icc
+      '')
+    ];
 
     home-manager.users.${username} = {
+      home.sessionVariables = {
+        ENABLE_HDR_WSI = "1";
+        DXVK_HDR = "1";
+      };
       wayland.windowManager.hyprland.settings = {
         general.layout = "master";
         master = {
           orientation = "center";
-          always_center_master = true;
+          slave_count_for_center_master = 0;
           mfact = 0.4;
         };
         monitor = [
@@ -34,6 +61,13 @@ in
         ];
         xwayland.force_zero_scaling = true;
         misc.vrr = 2; # VA suffers from VRR flicker
+        cursor = {
+          min_refresh_rate = 48;
+          no_break_fs_vrr = true;
+        };
+        experimental = {
+          xx_color_management_v4 = true;
+        };
       };
 
       programs.waybar.settings.mainBar."custom/brightness" =
@@ -81,16 +115,5 @@ in
           interval = "once";
         };
     };
-
-    programs.steam.gamescopeSession = {
-      env = {
-        SCREEN_WIDTH = "3840";
-        SCREEN_HEIGHT = "2160";
-      };
-      args = [
-        "--hdr-enabled"
-        "--hdr-itm-enable"
-      ];
-    };
   };
 }