grub + nvidia (kinda)

system-modules/hardware-configuration.nix

@@ -1,51 +1,54 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, user, pkgs, modulesPath, ... }:
 
 {
-  imports =
-    [
-      (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "vmd" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
-  boot.initrd.kernelModules = [ ];
+  # boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    #    { device = "/dev/disk/by-uuid/9770465e-6b0e-40ec-944a-953fe71cf47a";
-    {
-      device = "/dev/disk/by-label/nixos";
-      fsType = "ext4";
-    };
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+  };
 
-  fileSystems."/boot" =
-    {
-      device = "/dev/disk/by-label/EFI";
-      fsType = "vfat";
-    };
-  fileSystems."/home/${user}/shared" =
-    {
-      device = "/dev/disk/by-label/shared";
-      fsType = "ntfs";
-    };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/EFI";
+    fsType = "vfat";
+  };
+  fileSystems."/home/${user}/shared" = {
+    device = "/dev/disk/by-label/shared";
+    fsType = "ntfs";
+  };
 
   swapDevices = [
-    {
-      device = "/dev/disk/by-label/swap";
-      # size = 16 * 1024;
-    }
+    { device = "/dev/disk/by-label/swap"; }
   ];
 
-  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
-  # (the default) this is the recommended approach. When using systemd-networkd it's
-  # still possible to use this option, but it's recommended to use it in conjunction
-  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
   networking.useDHCP = lib.mkDefault true;
-  # networking.interfaces.wlp0s20f3.useDHCP = lib.mkDefault true;
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  # from nixos-hardware
+  services.thermald.enable = lib.mkDefault true;
+  boot.extraModprobeConfig = ''
+    options iwlwifi 11n_disable=8
+  '';
+  boot.initrd.kernelModules = [ "i915" ];
+
+  environment.variables = {
+    VDPAU_DRIVER = lib.mkIf config.hardware.opengl.enable (lib.mkDefault "va_gl");
+  };
+
+  hardware.opengl.extraPackages = with pkgs; [
+    (if (lib.versionOlder (lib.versions.majorMinor lib.version) "23.11") then vaapiIntel else intel-vaapi-driver)
+    libvdpau-va-gl
+    intel-media-driver
+  ];
+
+
 }

system-modules/nvidia.nix

@@ -0,0 +1,72 @@
+{ config, pkgs, pkgs-unstable, lib, nvidia, ... }:
+let
+in
+{
+  config = lib.mkIf nvidia.enable {
+    environment.systemPackages = with pkgs; [
+      lshw
+      nvtop
+      glxinfo
+      (pkgs.writeShellScriptBin "nvidia-offload" ''
+        export __NV_PRIME_RENDER_OFFLOAD=1
+        export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
+        export __GLX_VENDOR_LIBRARY_NAME=nvidia
+        export __VK_LAYER_NV_optimus=NVIDIA_only
+        exec "$@"
+      '')
+    ] ++ [
+      # pkgs-unstable.nvtopPackages.intel
+      # pkgs-unstable.nvtopPackages.nvidia
+    ];
+
+    # Load nvidia driver for Xorg and Wayland
+    services.xserver.videoDrivers = [ "nvidia" ];
+
+    hardware = {
+      nvidia = {
+        prime = lib.mkIf nvidia.prime {
+          intelBusId = "PCI:0:2:0";
+          nvidiaBusId = "PCI:1:0:0";
+          offload = {
+            enable = true;
+            enableOffloadCmd = true;
+          };
+        };
+        modesetting.enable = true;
+
+        # Modesetting is required.
+
+        # 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 = true;
+
+        # Fine-grained power management. Turns off GPU when not in use.
+        # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+        powerManagement.finegrained = true;
+
+        # 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;
+      };
+      opengl = {
+        enable = true;
+        driSupport = true;
+        driSupport32Bit = true;
+      };
+    };
+  };
+}