nixos-config/machines/mimir/hardware-configuration.nix

# 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, pkgs, ... }:

{
  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usb_storage" "usbhid" ];
  boot.initrd.kernelModules = [ "dm-snapshot" ];
  boot.kernelModules = [ "kvm-amd" "apple-mfi-fastcharge" "zenpower" ];
  boot.extraModulePackages = [ ] ++
    (with config.boot.kernelPackages; [ rtl88x2bu zenpower ]);

  boot.extraModprobeConfig = ''
    options amd-pstate shared_mem=true
  '';

  fileSystems."/" = {
    device = "/dev/disk/by-label/nixos";
    fsType = "ext4";
  };

  fileSystems."/boot" = {
    device = "/dev/disk/by-label/boot";
    fsType = "vfat";
  };

  fileSystems."/home" = {
    device = "/dev/disk/by-label/home";
    fsType = "ext4";
  };

  fileSystems."/yocto" = {
    device = "/dev/disk/by-label/yocto";
    fsType = "ext4";
  };

  swapDevices =
    [{ device = "/dev/disk/by-label/swap"; }];

  powerManagement.cpuFreqGovernor = "ondemand";
  hardware = {
    video.hidpi.enable = false;
    enableAllFirmware = true;
    nvidia.modesetting.enable = true;

    opengl = {
      extraPackages = with pkgs; [
        vaapiVdpau
      ];
    };
  };

  services.xserver = {
    videoDrivers = [ "nvidia" ];

    # Section "Screen"
    #   Identifier     "Screen0"
    #   Device         "Device0"
    #   Monitor        "Monitor0"
    #   DefaultDepth    24
    #   Option         "Stereo" "0"
    #   Option         "nvidiaXineramaInfoOrder" "DFP-2"
    #   Option         "metamodes" "DP-4: nvidia-auto-select +3840+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}, DP-0: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}"
    #   Option         "SLI" "Off"
    #   Option         "MultiGPU" "Off"
    #   Option         "BaseMosaic" "off"
    #   SubSection     "Display"
    #     Depth       24
    #   EndSubSection
    # EndSection

    screenSection = ''
      Option "metamodes" "DP-0: nvidia-auto-select +0+0 {ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}, DP-4: nvidia-auto-select +3840+0 {ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}"
      Option "TripleBuffer" "On"
    '';
  };
}