📺 Reorganized, changed hardware acceleration to use Nvidia, added

Nvidia powermanagement

modules/hardware/graphics/nvidia.nix

@@ -1,11 +1,26 @@
+{ pkgs, ... }:
+
 {
-  hardware.nvidia = {
-    # Required
-    modesetting.enable = true;
-    # Use closed-source drivers
-    open = false;
-    # Enable the Nvidia settings menu
-    nvidiaSettings = true;
+  boot.kernelParams = [ "nvidia.NVreg_PreserveVideoMemoryAllocations=1" ];
+
+  # For hardware acceleration
+  environment.sessionVariables.LIBVA_DRIVER_NAME = "nvidia";
+
+  hardware = {
+    graphics.extraPackages = with pkgs; [
+      # Used for hardware-acceleration
+      nvidia-vaapi-driver
+    ];
+    nvidia = {
+      # Required
+      modesetting.enable = true;
+      # Use closed-source drivers
+      open = false;
+      # Enable the Nvidia settings menu
+      nvidiaSettings = true;
+      # Enable nvidia-suspend.service, nvidia-hibernate.service and nvidia-resume.service
+      powerManagement.enable = true;
+    };
   };
 
   # Load Nvidia driver for Xorg and Wayland