nvidia offloading refactor.

nvidia-intel.nix

@@ -12,16 +12,52 @@ hardware.opengl.extraPackages = with pkgs; [
   libvdpau-va-gl
 ];
 
-hardware.nvidia.nvidiaSettings = false;
+#hardware.nvidia.nvidiaSettings = false;
-hardware.nvidia.modesetting.enable = true;  
+#hardware.nvidia.modesetting.enable = true;  
-hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
+#hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
+
+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;
+};
 
 ##### nvidia offloading ########
 
  services.xserver.videoDrivers = [ "nvidia" ];
 
   hardware.nvidia.prime = {
-    sync.enable = true;
+    #sync.enable = true;
+    offload = {
+      enable = true;
+      enableOffloadCmd = true;
+      };
     
     # Bus ID of the NVIDIA GPU. You can find it using lspci, either under 3D or VGA
     nvidiaBusId = "PCI:1:0:0";