105 lines
3.2 KiB
Nix
105 lines
3.2 KiB
Nix
{ config, lib, ... }:
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{
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options.modules.nvidia = {
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enable = lib.mkEnableOption "NVIDIA proprietary drivers";
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open = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = ''
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Use the open-source NVIDIA kernel module.
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Set to true for Turing (RTX 20-series) and newer.
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Set to false for older architectures.
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'';
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};
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package = lib.mkOption {
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type = lib.types.package;
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default = config.boot.kernelPackages.nvidiaPackages.stable;
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defaultText = lib.literalExpression
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"config.boot.kernelPackages.nvidiaPackages.stable";
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description = "The NVIDIA driver package to use.";
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};
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prime = {
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enable = lib.mkEnableOption "NVIDIA Optimus PRIME (hybrid graphics)";
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mode = lib.mkOption {
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type = lib.types.enum [ "offload" "sync" "reverse-sync" ];
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default = "offload";
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description = ''
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Which PRIME mode to use.
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offload — iGPU handles everything; dGPU used on demand (best battery)
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sync — dGPU always active; best performance, less tearing
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reverse-sync — experimental; dGPU primary, iGPU for outputs
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'';
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};
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intelBusId = lib.mkOption {
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type = lib.types.str;
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default = "";
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example = "PCI:0:2:0";
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description = "PCI bus ID of the Intel iGPU (from lshw -c display).";
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};
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amdBusId = lib.mkOption {
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type = lib.types.str;
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default = "";
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example = "PCI:54:0:0";
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description = "PCI bus ID of the AMD iGPU (from lshw -c display). Leave empty if Intel.";
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};
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nvidiaBusId = lib.mkOption {
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type = lib.types.str;
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default = "";
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example = "PCI:14:0:0";
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description = "PCI bus ID of the NVIDIA dGPU (from lshw -c display).";
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};
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};
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};
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config = lib.mkIf config.modules.nvidia.enable {
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hardware.graphics.enable = true;
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services.xserver.videoDrivers =
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if config.modules.nvidia.prime.enable
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&& config.modules.nvidia.prime.mode == "offload"
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then [
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(if config.modules.nvidia.prime.amdBusId != "" then "amdgpu" else "modesetting")
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"nvidia"
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]
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else [ "nvidia" ];
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hardware.nvidia = {
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modesetting.enable = true;
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open = config.modules.nvidia.open;
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nvidiaSettings = true;
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package = config.modules.nvidia.package;
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powerManagement.enable = false;
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powerManagement.finegrained = false;
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prime = lib.mkIf config.modules.nvidia.prime.enable (
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let
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busIds = lib.filterAttrs (_: v: v != "") {
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intelBusId = config.modules.nvidia.prime.intelBusId;
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amdgpuBusId = config.modules.nvidia.prime.amdBusId;
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nvidiaBusId = config.modules.nvidia.prime.nvidiaBusId;
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};
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modeConfig =
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if config.modules.nvidia.prime.mode == "offload" then {
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offload.enable = true;
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offload.enableOffloadCmd = true;
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} else if config.modules.nvidia.prime.mode == "sync" then {
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sync.enable = true;
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} else {
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reverseSync.enable = true;
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allowExternalGpu = false;
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};
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in busIds // modeConfig
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);
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};
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};
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}
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