82 lines
2.6 KiB
Nix
82 lines
2.6 KiB
Nix
# Enables Nvidia GPU support.
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{
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pkgs,
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config,
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lib,
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...
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}:
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let
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cfg = config.aux.system.gpu.nvidia;
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in
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{
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options = {
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aux.system.gpu.nvidia = {
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enable = lib.mkEnableOption (lib.mdDoc "Enables Nvidia GPU support.");
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hybrid = {
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enable = lib.mkEnableOption (lib.mdDoc "Enables hybrid GPU support.");
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sync = lib.mkEnableOption (
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lib.mdDoc "Enables sync mode for faster performance at the cost of higher battery usage."
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);
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busIDs = {
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nvidia = lib.mkOption {
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description = "The bus ID for your Nvidia GPU.";
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type = lib.types.str;
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example = "PCI:0:2:0";
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default = "";
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};
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intel = lib.mkOption {
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description = "The bus ID for your integrated Intel GPU. If you don't have an Intel GPU, you can leave this blank.";
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type = lib.types.str;
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example = "PCI:14:0:0";
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default = "";
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};
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amd = lib.mkOption {
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description = "The bus ID for your integrated AMD GPU. If you don't have an AMD GPU, you can leave this blank.";
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type = lib.types.str;
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example = "PCI:54:0:0";
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default = "";
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};
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};
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};
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};
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};
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config = lib.mkIf cfg.enable {
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assertions = [
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{
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assertion = (cfg.hybrid.busIDs.nvidia != "");
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message = "You need to define a bus ID for your Nvidia GPU. To learn how to find the bus ID, see https://nixos.wiki/wiki/Nvidia#Configuring_Optimus_PRIME:_Bus_ID_Values_.28Mandatory.29.";
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}
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{
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assertion = (cfg.hybrid.busIDs.intel != "" || cfg.hybrid.busIDs.amd != "");
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message = "You need to define a bus ID for your non-Nvidia GPU. To learn how to find your bus ID, see https://nixos.wiki/wiki/Nvidia#Configuring_Optimus_PRIME:_Bus_ID_Values_.28Mandatory.29.";
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}
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];
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aux.system.allowUnfree = true;
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services.xserver.videoDrivers = lib.mkDefault [ "nvidia" ];
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hardware.graphics.extraPackages = with pkgs; [ vaapiVdpau ];
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hardware.nvidia = {
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modesetting.enable = true;
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nvidiaSettings = config.aux.system.ui.desktops.enable;
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package = config.boot.kernelPackages.nvidiaPackages.stable;
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prime = lib.mkIf cfg.hybrid.enable {
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offload = lib.mkIf (!cfg.hybrid.sync) {
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enable = true;
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enableOffloadCmd = true; # Provides `nvidia-offload` command.
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};
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sync.enable = cfg.hybrid.sync ;
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nvidiaBusId = cfg.hybrid.busIDs.nvidia;
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intelBusId = cfg.hybrid.busIDs.intel;
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amdgpuBusId = cfg.hybrid.busIDs.amd;
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};
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};
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};
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}
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