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simplify levi video config

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Sean Buckley 2024-05-05 23:45:03 -04:00
parent 4bb0b8777d
commit 913896ec30
1 changed files with 69 additions and 85 deletions
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154
hosts/levi/optimus.nix
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@ -1,92 +1,76 @@
{ lib, pkgs, ... }: {
let hardware.nvidia.prime.intelBusId = "PCI:0:2:0";
current-mode = "nvidia-mux"; hardware.nvidia.prime.nvidiaBusId = "PCI:1:0:0";
constants = { ### NVIDIA-only using MUX switch in BIOS.
hardware.nvidia.prime.intelBusId = "PCI:0:2:0"; #
hardware.nvidia.prime.nvidiaBusId = "PCI:1:0:0"; # 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}"
'';
}
available-modes = { ################################################################################
nvidia = { ### "sync mode"
### "sync mode" #
# # good:
# good: # max performance on external displays
# max performance on external displays # no BIOS settings change needed
# no BIOS settings change needed #
# # bad:
# bad: # graphics performance overhead on internal display
# graphics performance overhead on internal display # internal display capped at 60hz
# internal display capped at 60hz #
# # hardware.nvidia.prime.sync.enable = true;
hardware.nvidia.prime.sync.enable = true; # hardware.nvidia.modesetting.enable = true;
hardware.nvidia.modesetting.enable = true; # services.xserver.displayManager.gdm.wayland = false;
services.xserver.displayManager.gdm.wayland = false; # services.xserver.videoDrivers = [ "nvidia" ];
services.xserver.videoDrivers = [ "nvidia" ]; # # xrandr workaround for laptop panel not showing up with GDM. Reference:
# xrandr workaround for laptop panel not showing up with GDM. Reference: # # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/hardware/video/nvidia.nix
# https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/hardware/video/nvidia.nix # services.xserver.displayManager.sessionCommands = ''
services.xserver.displayManager.sessionCommands = '' # ${pkgs.xorg.xrandr}/bin/xrandr --setprovideroutputsource modesetting NVIDIA-0
${pkgs.xorg.xrandr}/bin/xrandr --setprovideroutputsource modesetting NVIDIA-0 # '';
'';
};
nvidia-mux = { ################################################################################
### optimus disabled in BIOS with MUX switch.
#
# good:
# simple, always works.
# max performance everywhere.
#
# bad:
# requires BIOS setting changes, which is annoying.
#
boot.kernelParams = [ "module_blacklist=i915" ];
services.xserver.displayManager.gdm.wayland = false;
services.xserver.videoDrivers = [ "nvidia" ];
services.xserver.screenSection = ''
Option "metamodes" "DP-2: 2560x1440_165 +0+0 {AllowGSYNCCompatible=On}"
'';
};
intel = { ### nvidia drivers disabled
### nvidia drivers disabled #
# # Not well tested. Possibly Incomplete.
# Not well tested. Possibly Incomplete. # Won't allow external displays connected to nvidia GPU.
# Won't allow external displays connected to nvidia GPU. #
# # Shutting off Nvidia GPU would theoretically save power.
# Shutting off Nvidia GPU would theoretically save power. # I do not think this actually powers down the Nvidia GPU, just stops using it.
# I do not think this actually powers down the Nvidia GPU, just stops using it. #
# # boot.kernelParams = [ "module_blacklist=nouveau" ];
boot.kernelParams = [ "module_blacklist=nouveau" ];
};
hybrid = { ################################################################################
### hybrid graphics
#
# Not well tested. Possibly Incomplete.
# Won't allow external displays connected to nvidia GPU.
#
# Everything would use intel by default,
# but specific apps would run on the nvidia GPU under the script.
#
hardware.nvidia.prime.offload.enable = true;
services.xserver.videoDrivers = [ "nvidia" ];
environment.systemPackages = [
(pkgs.writeShellScriptBin "nv" ''
export __NV_PRIME_RENDER_OFFLOAD=1
export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
export __GLX_VENDOR_LIBRARY_NAME=nvidia
export __VK_LAYER_NV_optimus=NVIDIA_only
exec "$@"
'')
];
};
}; ### hybrid graphics
#
in # Not well tested. Possibly Incomplete.
lib.mkMerge [ # Won't allow external displays connected to nvidia GPU.
(constants) #
(available-modes.${current-mode}) # Everything would use intel by default,
] # but specific apps would run on the nvidia GPU under the script.
#
# hardware.nvidia.prime.offload.enable = true;
# services.xserver.videoDrivers = [ "nvidia" ];
# environment.systemPackages = [
# (pkgs.writeShellScriptBin "nv" ''
# export __NV_PRIME_RENDER_OFFLOAD=1
# export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
# export __GLX_VENDOR_LIBRARY_NAME=nvidia
# export __VK_LAYER_NV_optimus=NVIDIA_only
# exec "$@"
# '')
# ];