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nixpkgs/modules/services/hardware/nvidia-optimus.nix
Peter Simons 89d5aa4dd2 nixos support for nvidia optimus
currently, only support for fully disabling nvidia is provided, which
is helpful for saving power/heat.

In the future, this should be extended so we can choose:

- nvidia only  (choose between nouveau/nvidia driver)
- IGP only
- Hybrid (choose between nouveau/nvidia driver, use the "bumblebee" package/daemon)

svn path=/nixos/trunk/; revision=32085
2012-02-06 19:14:42 +00:00

41 lines
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Nix

{pkgs, config, ...}:
let kernel = config.boot.kernelPackages;
in
{
###### interface
options = {
hardware.nvidiaOptimus.disable = pkgs.lib.mkOption {
default = false;
type = pkgs.lib.types.bool;
description = ''
completely disable the nvidia gfx chip (saves power / heat) and just use IGP
'';
};
};
###### implementation
config = pkgs.lib.mkIf config.hardware.nvidiaOptimus.disable {
boot.blacklistedKernelModules = ["nouveau" "nvidia" "nvidiafb"];
boot.kernelModules = [ "bbswitch" ];
boot.extraModulePackages = [ kernel.bbswitch ];
jobs.bbswitch = {
name = "bbswitch";
description = "turn off nvidia card";
startOn = "stopped udevtrigger";
exec = "discrete_vga_poweroff";
path = [kernel.bbswitch];
task = true;
};
};
}