/cc @abbradar (maintainer of the package, not sure if they maintain the module too)

I think it'd be better to introduce something akin to hardware.video.nvidia.package and use it both for NVIDIA module and for Bumblebee module - this way we avoid bumblebee-specific option.

Hmm now that I think about it this pr is probably useless since one can just do boot.kernelPackages = pkgs: pkgs.linuxPackages.override (old: { nvidia_x11 = old.nvidia_x11_legacy390; }) and it will be picked up by bumblebee... I'm not so sure anymore if adding a separate option for this is a good idea

@fgaz Huge thanks for the example code. It's a tiny bit off, but it helped me try the legacy drivers

{
  # ...

  boot.kernelPackages = pkgs.linuxPackages.extend (self: super: {
    nvidia_x11 = super.nvidia_x11_legacy390;
  });

  # ...
}

I guess I can close this now that we have a working config

I'm not entirely sure, logs from bumblebeed seemed to claim some non-legacy drivers were still in use. I couldn't be bothered to debug it either, hah. Shame testing the config in a VM can't test Nvidia Optimus hardware (AFAIK)

@jD91mZM2 Hmm that may explain why it stopped working for me... I don't have much time nor access to my hardware right now but I'd like to investigate this further. I'll open a separate issue.

There's a copule open issues about this already: #30185 and maybe #56729