system/lenovo: fix graphics config

systems/lenovo/hardware.nix

@@ -1,16 +1,21 @@
 { pkgs, ... }: {
   imports = [ ./hardware-configuration.nix ];
 
-  hardware.opengl = {
+  environment.variables = {
+    VDPAU_DRIVER = "radeonsi";
+    QT_MEDIA_BACKED = "gstreamer"; # ffmpeg can't choose between vdpau and vaapi for some reason
+  };
+
+  hardware.graphics = {
     enable = true;
-    driSupport = true;
+    enable32Bit = true;
-    driSupport32Bit = true;
+
     extraPackages = with pkgs; [
-      rocm-opencl-icd
       amdvlk
     ];
-    extraPackages32 = with pkgs; [
+
-      driversi686Linux.amdvlk
+    extraPackages32 = with pkgs.driversi686Linux; [
+      amdvlk
     ];
   };
 }