feat: add adm graphics

nixos/hosts/rickenbacker/default.nix

@@ -26,10 +26,11 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
   boot.binfmt.emulatedSystems = [ "aarch64-linux" ]; # Enabled for raspi4 compilation
+  boot.initrd.kernelModules = [ "amdgpu" ];
 
   networking.hostName = "rickenbacker"; # Define your hostname.
 
- # Enable OpenGL
+  # Enable OpenGL
   hardware.opengl = {
     enable = true;
     driSupport = true;
@@ -37,39 +38,8 @@
   };
 
   # Load nvidia driver for Xorg and Wayland
-  services.xserver.videoDrivers = ["nvidia"]; # or "nvidiaLegacy470 etc.
+  services.xserver.videoDrivers = [ "amdgpu" ]; # or "nvidiaLegacy470 etc.
 
-  hardware.nvidia = {
-
-    # Modesetting is required.
-    modesetting.enable = true;
-
-    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
-    # Enable this if you have graphical corruption issues or application crashes after waking
-    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
-    # of just the bare essentials.
-    powerManagement.enable = false;
-
-    # Fine-grained power management. Turns off GPU when not in use.
-    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
-    powerManagement.finegrained = false;
-
-    # Use the NVidia open source kernel module (not to be confused with the
-    # independent third-party "nouveau" open source driver).
-    # Support is limited to the Turing and later architectures. Full list of
-    # supported GPUs is at:
-    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
-    # Only available from driver 515.43.04+
-    # Currently alpha-quality/buggy, so false is currently the recommended setting.
-    open = false;
-
-    # Enable the Nvidia settings menu,
-    # accessible via `nvidia-settings`.
-    nvidiaSettings = true;
-
-    # Optionally, you may need to select the appropriate driver version for your specific GPU.
-    package = config.boot.kernelPackages.nvidiaPackages.stable;
-  };
 
   # Pick only one of the below networking options.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.