From time to time (not always, but on different hardware so it isn’t broken card) I get black dots on the top left corner of the screen.
Screenshot tool grabs this dots. I searched the web for solutions (it is known problem) and found only one working: switch to text (tty1) console and back (tty8 in my case). Artifacts exist on all driver and kernel versions. Is it possible to fix this problem by changing system or driver settings or it is driver bug? Maybe there’s some workaround, more convenient than tty switch? Please, help!