yanlin/nix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

remove nvidia gpu from thinkpad completely

Browse source
This commit is contained in:
Yan Lin 2025-10-23 22:57:44 +02:00
parent 3ebb297306
commit 3a0edac987
1 changed files with 10 additions and 77 deletions
Download patch file Download diff file Expand all files Collapse all files

81
hosts/nixos/thinkpad/system.nix
View file

@ -1,18 +1,5 @@
{ config, pkgs, lib, ... }: { config, pkgs, lib, ... }:
let
# Helper function to patch desktop entries for NVIDIA offload
patchDesktop = pkg: appName: from: to: lib.hiPrio (
pkgs.runCommand "patched-desktop-entry-for-${appName}" {} ''
${pkgs.coreutils}/bin/mkdir -p $out/share/applications
${pkgs.gnused}/bin/sed 's#${from}#${to}#g' < ${pkg}/share/applications/${appName}.desktop > $out/share/applications/${appName}.desktop
''
);
# Wrapper to automatically run applications with NVIDIA offload
GPUOffloadApp = pkg: desktopName: patchDesktop pkg desktopName "^Exec=" "Exec=nvidia-offload ";
in
{ {
imports = [ imports = [
./hardware-configuration.nix ./hardware-configuration.nix
@ -44,10 +31,13 @@ in
"mem_sleep_default=deep" "mem_sleep_default=deep"
]; ];
# Blacklist NVIDIA kernel modules to disable discrete GPU completely
boot.blacklistedKernelModules = [ "nouveau" "nvidia" "nvidia_drm" "nvidia_modeset" "nvidia_uvm" ];
# Enable firmware updates # Enable firmware updates
services.fwupd.enable = true; services.fwupd.enable = true;
# Hardware support for ThinkPad P14s Gen 2 Intel # Hardware support for ThinkPad P14s Gen 2 Intel (Intel graphics only)
hardware = { hardware = {
enableRedistributableFirmware = true; enableRedistributableFirmware = true;
cpu.intel.updateMicrocode = true; cpu.intel.updateMicrocode = true;
@ -64,39 +54,6 @@ in
]; ];
}; };
# NVIDIA configuration (T500)
nvidia = {
# Modesetting is required for PRIME
modesetting.enable = true;
# Power management (experimental but useful for laptops)
powerManagement.enable = true;
powerManagement.finegrained = true;
# Use proprietary driver (open source doesn't support T500 well)
open = false;
# Enable nvidia-settings application
nvidiaSettings = true;
# Use production driver (more stable than latest)
package = config.boot.kernelPackages.nvidiaPackages.production;
# PRIME Offload configuration (better battery life)
prime = {
offload = {
enable = true;
enableOffloadCmd = true; # Provides nvidia-offload command
};
# Bus IDs - MUST be verified after installation with:
# lspci | grep -E 'VGA|3D'
# These are typical values but may differ
intelBusId = "PCI:0:2:0";
nvidiaBusId = "PCI:1:0:0";
};
};
# Bluetooth support # Bluetooth support
bluetooth = { bluetooth = {
enable = true; enable = true;
@ -136,21 +93,6 @@ in
services.displayManager.gdm.enable = true; services.displayManager.gdm.enable = true;
services.desktopManager.gnome.enable = true; services.desktopManager.gnome.enable = true;
# Enable NVIDIA video drivers
services.xserver.videoDrivers = [ "nvidia" ];
# Steam gaming configuration
programs.steam = {
enable = true;
remotePlay.openFirewall = true;
dedicatedServer.openFirewall = true;
localNetworkGameTransfers.openFirewall = true;
gamescopeSession.enable = true;
};
# Enable GameMode for performance optimization
programs.gamemode.enable = true;
# Keyboard layout # Keyboard layout
services.xserver.xkb = { services.xserver.xkb = {
layout = "us"; layout = "us";
@ -229,8 +171,8 @@ in
INTEL_GPU_BOOST_FREQ_ON_BAT = 1100; INTEL_GPU_BOOST_FREQ_ON_BAT = 1100;
# ThinkPad battery charge thresholds (preserve battery health) # ThinkPad battery charge thresholds (preserve battery health)
START_CHARGE_THRESH_BAT0 = 70; START_CHARGE_THRESH_BAT0 = 80;
STOP_CHARGE_THRESH_BAT0 = 80; STOP_CHARGE_THRESH_BAT0 = 100;
# PCIe power management # PCIe power management
RUNTIME_PM_ON_AC = "on"; RUNTIME_PM_ON_AC = "on";
@ -246,7 +188,7 @@ in
Login = { Login = {
HandleLidSwitch = "suspend"; # Suspend on lid close (battery only) HandleLidSwitch = "suspend"; # Suspend on lid close (battery only)
HandleLidSwitchDocked = "ignore"; HandleLidSwitchDocked = "ignore";
HandleLidSwitchExternalPower = "ignore"; HandleLidSwitchExternalPower = "suspend";
HandlePowerKey = "suspend"; # Suspend on power button press HandlePowerKey = "suspend"; # Suspend on power button press
HandleSuspendKey = "suspend"; # Allow manual suspend from GNOME menu HandleSuspendKey = "suspend"; # Allow manual suspend from GNOME menu
HandleHibernateKey = "ignore"; HandleHibernateKey = "ignore";
@ -300,7 +242,6 @@ in
unzip unzip
# GPU monitoring # GPU monitoring
nvtopPackages.nvidia
intel-gpu-tools intel-gpu-tools
# Laptop utilities # Laptop utilities
@ -313,14 +254,6 @@ in
# Icon themes for GNOME applications # Icon themes for GNOME applications
adwaita-icon-theme adwaita-icon-theme
hicolor-icon-theme hicolor-icon-theme
# Gaming utilities
mangohud # Performance overlay for games
gamescope # SteamOS session compositing window manager
protonup-qt # Proton version manager
# Steam with NVIDIA offload (patched desktop entry)
(GPUOffloadApp config.programs.steam.package "steam")
]; ];