I am on 4.1 with kernel-latest with a mobile NVIDIA RTX 3060 running KDE. When I plug in an HDMI cord, the built-in KDE system detects the output and asks the basic “mirror, extend, etc.”. Though the prompt showing this, it does not actually display anything on the device. It does this for both Thunderbolt and HDMI. Does anyone have any ideas? I do not wish to install nvidia drivers onto dom0, though I think I may be forced to.