Black screen after a short time after system updates and bios update

That will be a problem.
You should remove this post-haste.
And probably force reinstall the ‘group’ open driver profile.

( You should also remove everything else you did … like the extra services, any other test configs, and dont mess with the mhwd file again unless you manually edited it … in which case remove it before reinstalling the drivers. Put everything back the way it was. )

sudo mhwd -r pci video-vesa
sudo mhwd -f -i pci video-linux

Someone else did the same thing recently and installed that without thinking about it … so theres some extra information over there;