[solved] Graphics drivers for Intel Arc GPUs

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1

Introduction: I use Intel Arc GPU (specifically a750) paired with i5 13400F, how can I enable hardware accelaration and install other necessary drivers in it? I am a bit confused as I am a newbie to Linux and NixOS.

What I have learned and implemented (only those which are comments) after reading a few wiki pages, inside /etc/configuration.nix

{
...
  services.xserver = {
    enable = true;
    xkb.layout = "us";
    #videoDrivers = [ "intel" ];
  };
  #hardware.graphics = {
  #  enable = true;
  #  extraPackages = with pkgs; [
  #    vpl-gpu-rt
  #    libvdpau-va-gl
  #    intel-media-driver
  #    intel-vaapi-driver
  #    intel-compute-runtime
  #  ];
  #  extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
  #};
  #environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; NIXOS_OZONE_WL = "1"; };
...
}

But, when I do sudo nixos-rebuild switch I encounter no errors but when I reboot it only shows the tty. And, after loggin in through tty I cannot even start sddm sudo systemctl start sddm. It says sddm.service not found. So, after that I just commented every change I made and it fixed.

2

so for the configuration of the Gpu you just need to put following in the configuration:

  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      ... # your Open GL, Vulkan and VAAPI drivers
      vpl-gpu-rt          # for newer GPUs on NixOS >24.05 or unstable
      # onevpl-intel-gpu  # for newer GPUs on NixOS <= 24.05
      # intel-media-sdk   # for older GPUs
    ];
  };

For the sddm problem i don’t really understand if it works now.
but could you post your config?

3

the problem was with
services.xserver.videoDrivers = [ "intel" ];
after commenting out this line and intel-vaapi-driver everything worked fine!
thanks for your response!
this is my configuration

{ config, pkgs, ... }:

{
  imports =
    [
      ./hardware-configuration.nix
    ];

  # bootloader
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # hostname
  networking.hostName = "dhaka";

  # networking
  networking.networkmanager.enable = true;

  # time zone
  time.timeZone = "Asia/Dhaka";

  # locale
  i18n.defaultLocale = "en_US.UTF-8";
  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_US.UTF-8";
    LC_IDENTIFICATION = "en_US.UTF-8";
    LC_MEASUREMENT = "en_US.UTF-8";
    LC_MONETARY = "en_US.UTF-8";
    LC_NAME = "en_US.UTF-8";
    LC_NUMERIC = "en_US.UTF-8";
    LC_PAPER = "en_US.UTF-8";
    LC_TELEPHONE = "en_US.UTF-8";
    LC_TIME = "en_US.UTF-8";
  };

  # x11 windowing system/ xorg session
  services.xserver = {
    enable = true;
    xkb.layout = "us";
  };

  # hardware graphics extra packages
  hardware.graphics = {
    enable = true;
    extraPackages = with pkgs; [
      vpl-gpu-rt
      libvdpau-va-gl
      intel-media-driver
      intel-compute-runtime
    ];
    extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
  };

  # environment variables
  environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; NIXOS_OZONE_WL = "1"; };

  # display manager
  services.displayManager.sddm.enable = true;

  # desktop environment
  services.desktopManager.plasma6.enable = true;

  # sound with pipewire
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };

  # user account
  users.users.me = {
    isNormalUser = true;
    description = "home";
    extraGroups = [ "networkmanager" "wheel" ];
  };

  # default shell configuration
  users.defaultUserShell = pkgs.zsh;
  programs = {
    zsh = {
      enable = true;
      autosuggestions.enable = true;
      zsh-autoenv.enable = true;
      syntaxHighlighting.enable = true;
      ohMyZsh = {
        enable = true;
        theme = "robbyrussell";
        plugins = [
          "git"
          "history"
        ];
      };
    };
  };

  # users group
  users.groups.libvirtd.members = [ "me" ];

  # unfree packages
  nixpkgs.config.allowUnfree = true;

  # install programs via options
  programs.kdeconnect.enable = true;
  programs.virt-manager.enable = true;

  # fonts
  fonts.packages = with pkgs; [
    roboto
    unifont
    fira-code
    hack-font
    noto-fonts
    font-awesome
    dejavu_fonts
    liberation_ttf
    lohit-fonts.bengali
    noto-fonts-cjk-sans
    noto-fonts-cjk-serif
    noto-fonts-color-emoji
  ];

  # open banla keyboard on wayland with fcitx 5
  i18n.inputMethod = {
    type = "fcitx5";
    enable = true;
    fcitx5.waylandFrontend = true;
    fcitx5.addons = with pkgs; [
      fcitx5-openbangla-keyboard
    ];
  };

  # environment system packages
  environment.systemPackages = with pkgs; [
    vim
    git
    qemu
    wget
    kitty
    unzip
    clinfo
    haruna
    yt-dlp
    firefox
    vscodium
    keepassxc
    obs-studio
    teamviewer
    nixpkgs-fmt
    qbittorrent
    ffmpeg-full
    protonvpn-gui
    joplin-desktop
    github-desktop
    kdePackages.kate
    nixfmt-rfc-style
    kdePackages.kdenlive
    (ungoogled-chromium.override {
      enableWideVine = true;
      commandLineArgs = [
        "--enable-features=AcceleratedVideoEncoder,VaapiOnNvidiaGPUs,VaapiIgnoreDriverChecks,Vulkan,DefaultANGLEVulkan,VulkanFromANGLE"
        "--enable-features=VaapiIgnoreDriverChecks,VaapiVideoDecoder,PlatformHEVCDecoderSupport"
        "--enable-features=UseMultiPlaneFormatForHardwareVideo"
        "--ignore-gpu-blocklist"
        "--enable-zero-copy"
      ];
    })
  ];

  # nix flakes
  # nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # list services that you want to enable:

  # teamviewer
  services.teamviewer.enable = true;

  # virtualization
  virtualisation = {
    libvirtd.enable = true;
    spiceUSBRedirection.enable = true;
  };

  # flatpak and xdg portal
  services.flatpak.enable = true;
  xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
  xdg.portal.config.common.default = "gtk";

  # system state version
  system.stateVersion = "24.11";

}
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