How to override a variable declared in NixOS options?

shico · August 24, 2024, 10:19pm

I need to modify this line found in config for the bumblebee NixOS option

NixOS/nixpkgs/blob/797f7dc49e0bc7fab4b57c021cdf68f595e47841/nixos/modules/hardware/video/bumblebee.nix#L80


      
                  Set preferred power management method for unused card.
                '';
              };
          
          
  };
          };
          
          
config = mkIf cfg.enable {
            boot.blacklistedKernelModules = [ "nvidia-drm" "nvidia" "nouveau" ];
            boot.kernelModules = optional useBbswitch "bbswitch";
            boot.extraModulePackages = optional useBbswitch kernel.bbswitch ++ optional useNvidia kernel.nvidia_x11.bin;
          
          
  environment.systemPackages = [ bumblebee primus ];
          
          
  systemd.services.bumblebeed = {
              description = "Bumblebee Hybrid Graphics Switcher";
              wantedBy = [ "multi-user.target" ];
              before = [ "display-manager.service" ];
              serviceConfig = {
                ExecStart = "${bumblebee}/bin/bumblebeed --use-syslog -g ${cfg.group} --driver ${cfg.driver} --pm-method ${cfg.pmMethod}";
              };

It shouldn’t be kernel.nvidia_x11.bin because I use a legacy nvidia driver. How can I change it to something like
boot.extraModulePackages = optional useBbswitch kernel.bbswitch ++ optional useNvidia kernel.nvidia_x11_legacy390.bin;?

mightyiam · August 26, 2024, 2:52pm

Nothing about there here?