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{ config, lib, ... }:
let kernel = config.boot.kernelPackages; in
{
###### interface
options = {
hardware.nvidiaOptimus.disable = lib.mkOption {
default = false;
type = lib.types.bool;
description = ''
Completely disable the NVIDIA graphics card and use the
integrated graphics processor instead.
'';
};
};
###### implementation
config = lib.mkIf config.hardware.nvidiaOptimus.disable {
boot.blacklistedKernelModules = ["nouveau" "nvidia" "nvidiafb" "nvidia-drm"];
boot.kernelModules = [ "bbswitch" ];
boot.extraModulePackages = [ kernel.bbswitch ];
systemd.services.bbswitch = {
description = "Disable NVIDIA Card";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = "${kernel.bbswitch}/bin/discrete_vga_poweroff";
ExecStop = "${kernel.bbswitch}/bin/discrete_vga_poweron";
};
path = [ kernel.bbswitch ];
};
};
}
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