nixos-config/hosts/levi/xorg.nix

79 lines
2.5 KiB
Nix
Raw Normal View History

2024-05-06 03:45:03 +00:00
{
hardware.nvidia.prime.intelBusId = "PCI:0:2:0";
hardware.nvidia.prime.nvidiaBusId = "PCI:1:0:0";
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
### NVIDIA-only using MUX switch in BIOS.
#
# good:
# simple, always works.
# max performance everywhere.
#
# bad:
# requires BIOS setting changes, which is annoying.
#
boot.kernelParams = [ "module_blacklist=i915" ];
services.xserver.displayManager.gdm.wayland = false;
services.xserver.videoDrivers = [ "nvidia" ];
services.xserver.screenSection = ''
Option "metamodes" "DP-2: 2560x1440_165 +0+0 {AllowGSYNCCompatible=On}"
'';
}
2022-10-07 04:58:13 +00:00
### Nothing below this line has been tested since 2022
2024-05-06 03:45:03 +00:00
################################################################################
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
### "sync mode"
#
# good:
# max performance on external displays
# no BIOS settings change needed
#
# bad:
# graphics performance overhead on internal display
# internal display capped at 60hz
#
# hardware.nvidia.prime.sync.enable = true;
# hardware.nvidia.modesetting.enable = true;
# services.xserver.displayManager.gdm.wayland = false;
# services.xserver.videoDrivers = [ "nvidia" ];
# # xrandr workaround for laptop panel not showing up with GDM. Reference:
# # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/hardware/video/nvidia.nix
# services.xserver.displayManager.sessionCommands = ''
# ${pkgs.xorg.xrandr}/bin/xrandr --setprovideroutputsource modesetting NVIDIA-0
# '';
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
################################################################################
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
### nvidia drivers disabled
#
# Not well tested. Possibly Incomplete.
# Won't allow external displays connected to nvidia GPU.
#
# Shutting off Nvidia GPU would theoretically save power.
# I do not think this actually powers down the Nvidia GPU, just stops using it.
#
# boot.kernelParams = [ "module_blacklist=nouveau" ];
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
################################################################################
2022-10-07 04:58:13 +00:00
2024-05-06 03:45:03 +00:00
### hybrid graphics
#
# Not well tested. Possibly Incomplete.
# Won't allow external displays connected to nvidia GPU.
#
# Everything would use intel by default,
# but specific apps would run on the nvidia GPU under the script.
#
# hardware.nvidia.prime.offload.enable = true;
# services.xserver.videoDrivers = [ "nvidia" ];
# environment.systemPackages = [
# (pkgs.writeShellScriptBin "nv" ''
# export __NV_PRIME_RENDER_OFFLOAD=1
# export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
# export __GLX_VENDOR_LIBRARY_NAME=nvidia
# export __VK_LAYER_NV_optimus=NVIDIA_only
# exec "$@"
# '')
# ];