NVIDIA driver¶
gewis.nvidia runs NVIDIA's driver with the open kernel modules
(hardware.nvidia.open) instead of nouveau. It is defined in
nix/modules/nvidia.nix, imported by every host through
nix/modules/default.nix, and does nothing until a host sets
gewis.nvidia.enable = true.
On nouveau, some Aurora pages flickered in Firefox. The open modules
blacklist nouveau. They only support Turing (GTX 16xx, RTX 20xx) and newer.
An older card needs hardware.nvidia.open = false, and this module does not
set that. nvidia-x11 is allow-listed as the only unfree package, and
nvidia-settings is left out.
Checking a host¶
Find the card, then check which driver is bound to it after a switch: