Hello guys, I’m fairly new to Nix and Linux generally and falling in love with it. however I have a small inconvenient. I have set my configuration all according to manual and I have done everything I could possibly find.
I have a Razer 15 laptop. Using hyprland from the flake nvidia seems working even though nothing shows in nvidia-settings but checking nvidia-smi looks like its working.
My problem is when I attach my laptop to TV with an HDMI the TV monitor flickers its very annoying I cant enjoy whatever I’m watching. However when using services.xserver.videoDrivers = [ "modesetting" ]; using my intel GPU instead of nvidia and attach my laptop there is no problems. I would like to have my nvidia running instead of rebuilding everytime I need it. which is what I’m doing right now
here is my nvidia module for reference
its a mess because I have pasted everything I thought that could fix it
{ config, pkgs, lib, inputs, user, ... }:
{
#Nvidia
#Allow unfree packages
nixpkgs.config.allowUnfree = true;
services.xserver = {
videoDrivers = [ "nvidia" ];
config = ''
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
#Option "AccelMethod" "sna" # default
#Option "AccelMethod" "uxa" # fallback
Option "TearFree" "true"
Option "SwapbuffersWait" "true"
BusID "PCI:0:2:0"
#Option "DRI" "2" # DRI3 is now default
EndSection
Section "Device"
Identifier "nvidia"
Driver "nvidia"
BusID "PCI:1:0:0"
Option "AllowEmptyInitialConfiguration"
EndSection
'';
screenSection = ''
Option "metamodes" "nvidia-auto-select +0+0 {ForceFullCompositionPipeline=On}"
Option "AllowIndirectGLXProtocol" "off"
Option "TripleBuffer" "on"
'';
};
hardware.opengl.enable = true;
hardware.opengl.driSupport = true;
hardware.opengl.driSupport32Bit = true;
hardware.nvidia.nvidiaSettings = true;
hardware.nvidia.powerManagement.enable = true;
hardware.nvidia.forceFullCompositionPipeline = true;
# Cuda
services.xmr-stak.cudaSupport = true;
# Optionally, you may need to select the appropriate driver version for your specific GPU.
hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
# nvidia-drm.modeset=1 is required for some wayland compositors, e.g. sway
hardware.nvidia.modesetting.enable = true;
}
and here is my home.nix variables
home.sessionVariables = {
BROWSER = "google-chrome-beta";
TERMINAL = "kitty";
NIXOS_OZONE_WL = "1";
QT_QPA_PLATFORMTHEME = "gtk3";
QT_SCALE_FACTOR = "1";
#MOZ_ENABLE_WAYLAND = "1";
SDL_VIDEODRIVER = "wayland";
_JAVA_AWT_WM_NONREPARENTING = "1";
QT_QPA_PLATFORM = "wayland-egl";
QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
QT_AUTO_SCREEN_SCALE_FACTOR = "1";
WLR_DRM_DEVICES = "/dev/dri/card1:/dev/dri/card0";
WLR_NO_HARDWARE_CURSORS = "1"; # if no cursor,uncomment this line
# GBM_BACKEND = "nvidia-drm";
CLUTTER_BACKEND = "wayland";
__GLX_VENDOR_LIBRARY_NAME = "nvidia";
LIBVA_DRIVER_NAME = "nvidia";
WLR_RENDERER = "vulkan";
__NV_PRIME_RENDER_OFFLOAD="1";
XDG_CURRENT_DESKTOP = "Hyprland";
XDG_SESSION_DESKTOP = "Hyprland";
XDG_SESSION_TYPE = "wayland";
GTK_USE_PORTAL = "1";
NIXOS_XDG_OPEN_USE_PORTAL = "1";
XDG_CACHE_HOME = "\${HOME}/.cache";
XDG_CONFIG_HOME = "\${HOME}/.config";
XDG_BIN_HOME = "\${HOME}/.local/bin";
XDG_DATA_HOME = "\${HOME}/.local/share";
};
There is one ‘nuclear’ fix in hyprland wiki but it makes my laptop so hot and noisy.
which is forcing nvidia to work over time, its to add:
options nvidia NVreg_RegistryDwords="PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerLevel=0x3; PowerMizerDefault=0x3; PowerMizerDefaultAC=0x3"
in /etc/modprobe.d/nvidia.conf
“Do note though that this forces performance mode to be active, resulting in increased power-consumption (from 22W idle on a RTX 3070TI, to 74W).”
Lastly, I do have nvidia patch applied in my flake.nix here
{
description = "Hyprland+waybar";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
hyprland.url = "github:hyprwm/Hyprland";
home-manager.url = "github:nix-community/home-manager";
home-manager.inputs.nixpkgs.follows = "nixpkgs"; };
outputs = { self, nixpkgs, hyprland, home-manager, ... }:
let
user = "nomad";
system = "x86_64-linux";
pkgs = import nixpkgs {
inherit system;
config.allowUnfree = true;
};
lib = nixpkgs.lib;
in {
nixosConfigurations = {
${user} = nixpkgs.lib.nixosSystem {
inherit system;
specialArgs = {inherit user;};
modules = [ ./configuration.nix
hyprland.nixosModules.default
{
programs.hyprland.enable = true;
programs.hyprland.nvidiaPatches=true;
programs.hyprland.xwayland.enable=true;
}
home-manager.nixosModules.home-manager
{
home-manager.useGlobalPkgs = true;
home-manager.useUserPackages = true;
home-manager.extraSpecialArgs = {inherit user;};
home-manager.users.${user} = import ./modules/home.nix;
if you have the time and want to look through my whole setup here is the repo
Thanks in advance!