https://bugs.freedesktop.org/show_bug.cgi?id=110897
--- Comment #23 from Richard Thier u9vata@gmail.com --- Or can it be that literally I had a short term hardware error in my card because of running in this hot summer for very long periods. I could be ram corruption too that just got solved now for some reason. Also I can image zram and hiz maybe seperate small static rams that were not used for years so it had to get some warmup time - quite the opposite of the overuse?
In any ways. The performance is sometime a bit better, sometimes measurably better and now I do not see any glitches. Weird. I think I make this bug to be a "minor" one as maybe it is not really a real bug?