(In reply to Takashi Iwai from comment #6) > BTW, which kernel was the last working one? Was it already 5.13.x? Yes, it was 5.13.8. Some Plasma updates flew in between the snapshots as well - but as the Nvidia card seems to work, I would not consider this as the root cause. I can report it, but I guess I'm lost on any question except 'what hardware are you using?'