Hey there,
I have a problem wit my 4k display in combination with the Sapphire RT 5700xt. My mouse cursor freezes every 3 seconds. On DP it's not so bad but on HDMI it renders the system unusable. When I switch the monitor to DP1.1 instead of 1.2, the freeze is gone but I seem to get a general lag and only 30Hz instead of 60Hz (could be the reason for what feels like a general lag). When using my old 2K display, I don't have any problem at all.
I'm using the latest WEG and Lilu with agdpmod=pikera.
I am also wondering if the problem is monitor specific or if it would be the same with other 4k displays.
Unfortunately, I don't have another 4k display to test.
System specs
Monitor: PL2792UH (IIYAMA XUB2792UHSU)
Auflösung: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition)
UI sieht aus wie: 1920 x 1080 @ 60 Hz
Does anybody know what to do?