52 lines
1.5 KiB
Nix
52 lines
1.5 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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keyValues = (key: values: lib.strings.concatStringsSep " " [
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key
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(lib.strings.concatMapStringsSep " " (value: lib.strings.concatStrings [ "\"" value "\"" ]) values)
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]);
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keyValue = (key: value: keyValues key [ value ]);
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section = (name: strings: lib.strings.concatStrings [
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(keyValue "Section" name)
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(lib.strings.concatStringsSep "\n " strings)
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"EndSection"
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]);
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nvidia = ({ side, busID }: {
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system.nixos.tags = [ "eGPU" side ];
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# Disable intel graphics
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boot.kernelParams = [ "module_blacklist=i915" ];
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# Set X11 to use Nvidia drivers
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services.xserver.videoDrivers = [ "nvidia" ];
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# Wayland stuff maybe
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hardware.nvidia.modesetting.enable = true;
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# 32bit
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hardware.opengl.driSupport32Bit = true;
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hardware.opengl.enable = true;
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hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.latest;
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services.xserver.config = pkgs.lib.mkOverride 0 (lib.strings.concatStringsSep "\n\n" [
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(section "Module" [ (keyValue "Load" "modesetting") ])
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(section "Device" [
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(keyValue "Identifier" "Device0")
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(keyValue "Driver" "nvidia")
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(keyValue "BusID" busID)
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(keyValue "Option" "AllowEmptyInitialConfiguration")
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(keyValues "Option" [ "AllowExternalGpus" "True" ])
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])
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]);
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});
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in {
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# eGPU specialisation config
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specialisation = {
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eGPUright.configuration = nvidia { side = "right"; busID = "4:0:0"; };
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eGPUleft.configuration = nvidia { side = "left"; busID = "2:0:0"; };
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};
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}
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