The workaround outlined by @sureshot16 in comment #11 (add the nvidia drivers to initramfs) fixes it my Lenovo X1 Extreme too: Brightness control works again with nvidia-460.32.03, and no pixel garbage on mode switch either. Thanks, @sureshot16!
The workaround outlined by @sureshot16 in comment #11 (add the nvidia drivers to initramfs) fixes it my Lenovo X1 Extreme too: Brightness control works again with nvidia-460.32.03, and no pixel garbage on mode switch either. Thanks, @sureshot16!