Have the same error running mhwd
Summary
~ >>> mhwd
Warning: config '/var/lib/mhwd/local/pci/video-nvidia-455xx/MHWDCONFIG' is invalid!
> 0000:07:00.0 (0300:10de:1402) Display controller nVidia Corporation:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-nvidia 2020.11.30 false PCI
video-nvidia-390xx 2020.11.30 false PCI
video-linux 2018.05.04 true PCI
video-modesetting 2020.01.13 true PCI
video-vesa 2017.03.12 true PCI
For me it’s harmless and looking for a AMD video card anyway.