starting point

modules/drivers/nvidia.nix

@@ -0,0 +1,63 @@
+{ config, pkgs, lib, ... }:
+
+{
+  nixpkgs.config.nvidia.acceptLicense = true;
+  services.xserver.videoDrivers = [ "nvidia" ];
+
+  boot.kernelParams = [ "nvidia.NVreg_PreserveVideoMemoryAllocations=1" ];
+
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+    extraPackages = with pkgs; [
+      nvidia-vaapi-driver
+    ];
+  };
+
+  hardware.nvidia = {
+
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+    modesetting.enable = true;
+    open = false;
+    nvidiaSettings = true;
+    dynamicBoost.enable = false;
+
+    powerManagement = {
+      enable = true;
+      finegrained = false;
+    };
+
+    prime = {
+      sync.enable = true;
+      intelBusId = "PCI:0:2:0";
+      nvidiaBusId = "PCI:1:0:0";
+
+      # offload = {
+      #   enable = true;
+      #   enableOffloadCmd = true;
+      # };
+    };
+  };
+
+  specialisation = {
+    Battery.configuration = {
+      system.nixos.tags = [ "Battery" ];
+      boot.extraModprobeConfig = ''
+        blacklist nouveau
+        options nouveau modeset=0
+      '';
+
+      services.udev.extraRules = ''s
+  # Remove NVIDIA USB xHCI Host Controller devices, if present
+  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{power/control}="auto", ATTR{remove}="1"
+  # Remove NVIDIA USB Type-C UCSI devices, if present
+  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c8000", ATTR{power/control}="auto", ATTR{remove}="1"
+  # Remove NVIDIA Audio devices, if present
+  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x040300", ATTR{power/control}="auto", ATTR{remove}="1"
+  # Remove NVIDIA VGA/3D controller devices
+  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", ATTR{power/control}="auto", ATTR{remove}="1"
+'';
+      boot.blacklistedKernelModules = [ "nouveau" "nvidia" "nvidia_drm" "nvidia_modeset" ];
+    };
+  };
+}