flake/nixos/modules/hardware/gpu/nvidia.nix

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{
lib,
config,
...
}: let
cfg = config.myFlake.nixos.hardware.gpu.nvidia;
in {
options = {
myFlake.nixos.hardware.gpu.nvidia.enable = lib.mkEnableOption "Whether to enable NVIDIA GPU.";
myFlake.nixos.hardware.gpu.nvidia.prime = lib.mkEnableOption "Whether to enable NVIDIA Prime.";
};
# https://nixos.wiki/wiki/Nvidia
config = lib.mkIf cfg.enable {
hardware.opengl = {
enable = true;
driSupport = true;
driSupport32Bit = true;
};
services.xserver.videoDrivers = ["nvidia"]; # tell xorg to use the nvidia driver, also valid for wayland
hardware.nvidia = {
package = config.boot.kernelPackages.nvidiaPackages.stable;
open = false;
modesetting.enable = true;
#dynamicboost.enable = true;
powerManagement = {
enable = true; # experimental power management feature
#finegrained = true;
};
};
# cfg.prime
hardware.nvidia.prime = lib.mkIf cfg.prime {
sync.enable = false;
offload = {
enable = true;
enableOffloadCmd = true;
};
### Device specific, please put those configuration in `machines/your-machine.nix`
# nvidiaBusId = "PCI:1:0:0";
# intelBusId = "PCI:0:2:0";
};
environment.sessionVariables = {
"GAMEMODERUNEXEC" = lib.mkIf (cfg.prime || config.programs.gamemode.enable) "env __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia __VK_LAYER_NV_optimus=NVIDIA_only"; # gamemode: nvidia offload
};
};
}