Odd Resolution Issue - Big Sur. Works after re-plugging the DV cable

[echoesoflife]

Hi all!

I am experiencing an odd resolution bug with Big Sur and my AMD RX 580.

OpenCore loads up in a stretched resolution (presumably, 1280x720). Once Big Sur has loaded, it looks stretched and odd (picture attached).

If I turn the monitor off and on or re-plug the DV cable, the resolution is perfectly restored.

I was able to find a few similar threads with no proper solution.

I assume that there may be tweaks needed in OpenCore / Kexts? I am using Lilu and WhateverGreen.

EFI folder is attached, as well as the two pictures.

Your help and advice would be greatly appreciated!

 

[aleixsr]

@echoesoflife did you found any solution?

 

[echoesoflife]

@echoesoflife did you found any solution?

Hi Aleixsr!

No, not really. Just switching the monitor on and off with the button is the simplest solution for now. Doesn't take long.

I noticed that maybe in 2% of cases the system would load up without this issue. I'm not sure what it is connected with, though.

I'm more concerned with the USB map for now as it seems to be delivering more issues...