https://bugzilla.kernel.org/show_bug.cgi?id=211425
Andreas (icedragon.aw@web.de) changed:
What |Removed |Added ---------------------------------------------------------------------------- Kernel Version|5.14.6 |5.14.13
--- Comment #22 from Andreas (icedragon.aw@web.de) --- Interessting idea with the DP 1.2 support.
I have tested around with disabling the 1.2 DP support on my LCD, but this only decrease the FPS from 60Hz down to 30Hz on 4k scree-size. But also with disabled DP 1.2 support (of the LCD) and/or with decreasing the screen size to full-hd only - did not help: the issue is still persistent and is still reproducible until the latest main-line kernel 5.14.13 (5.14.14 testing in the next days).