Add settings for AMD Raphael iGPU

common/cpu/amd/raphael/igpu.nix

@@ -0,0 +1,15 @@
+{ lib, pkgs, ... }: 
+
+{
+  # Disables scatter/gather which was introduced with kernel version 6.2
+  # It produces completely white or flashing screens when enabled while using the iGPU of Ryzen 7000-series CPUs (Raphael)
+
+  imports = [ ../. ];
+
+  boot = lib.mkMerge [
+    (lib.mkIf (lib.versionOlder pkgs.linux.version "6.1") {
+      kernelPackages = pkgs.linuxPackages_latest;
+      kernelParams = lib.mkMerge [["amdgpu.sg_display=0"]];  
+    })
+  ];
+}