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{ config, lib, pkgs, fetchpatch, ... }:

let
  # Fixes framebuffer with linux 6.11
  fbdev_linux_611_patch = fetchpatch {
    url = "https://patch-diff.githubusercontent.com/raw/NVIDIA/open-gpu-kernel-modules/pull/692.patch";
    hash = "sha256-OYw8TsHDpBE5DBzdZCBT45+AiznzO9SfECz5/uXN5Uc=";
  };
in
{
  # Enable OpenGL
  hardware.opengl = {
    enable = true;
    driSupport = true;
    driSupport32Bit = true;
  };

  # Load nvidia driver for Xorg and Wayland
  services.xserver.videoDrivers = ["nvidia"];

  hardware.nvidia = {

    # Modesetting is required.
    modesetting.enable = true;

    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
    powerManagement.enable = true;
    # Fine-grained power management. Turns off GPU when not in use.
    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
    powerManagement.finegrained = false;

    # Use the NVidia open source kernel module (not to be confused with the
    # independent third-party "nouveau" open source driver).
    # Support is limited to the Turing and later architectures. Full list of 
    # supported GPUs is at: 
    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
    # Only available from driver 515.43.04+
    # Currently alpha-quality/buggy, so false is currently the recommended setting.
    # open = false;

    # Enable the Nvidia settings menu,
	# accessible via `nvidia-settings`.
    # note: fails to build after 560
    nvidiaSettings = false;

    # Optionally, you may need to select the appropriate driver version for your specific GPU.
    # package = config.boot.kernelPackages.nvidiaPackages.beta;
    
    # note: this is enabled by default for nvidia 555 so maybe it should be true?
    # very crashy :(
    open = false;   

    package = config.boot.kernelPackages.nvidiaPackages.mkDriver {
      version = "560.35.03";
      sha256_64bit = "sha256-8pMskvrdQ8WyNBvkU/xPc/CtcYXCa7ekP73oGuKfH+M=";
      sha256_aarch64 = "sha256-s8ZAVKvRNXpjxRYqM3E5oss5FdqW+tv1qQC2pDjfG+s=";
      openSha256 = "sha256-/32Zf0dKrofTmPZ3Ratw4vDM7B+OgpC4p7s+RHUjCrg=";
      settingsSha256 = "sha256-kQsvDgnxis9ANFmwIwB7HX5MkIAcpEEAHc8IBOLdXvk=";
      persistencedSha256 = "sha256-E2J2wYYyRu7Kc3MMZz/8ZIemcZg68rkzvqEwFAL3fFs=";
      #patchesOpen = [ fbdev_linux_611_patch ];
    }; 
  };
}