hi guys,

so I currently have an AMD Radeon 7900XTX and I am struggling getting an ultra wide custom resolution working. When I try it via AMD Adrenaline driver it always says my G.Clock is invalid but when I try lowering that so that invalid error dissappears, it says my display is incompatible with this specific resolution. I usually have NVIDIA cards and there it worked like a charm. I tried 38401x1600, 3840x1620 and 3840x1646. I can't seem to get any of those working.

Obviously I was looking for past threads where people wanted to do the same, but almost all of them have either NVIDIA cards where its literally done in 20seconds or they always suggest to use CRU for that, but I tried that also. The resolutions (via extension block -> detailed resoltuin) that I create in CRU don't appear in Windows at all and I have no idea what to do anymore.

Is anyone here playing on a LG TV with a ultra wide res?

Any help would be really appreciated! I can't be that complicated, can it?

Computer Type: Desktop

GPU: 7900 XTX

CPU: RYZEN 9 7950X

Motherboard: X670E Master

BIOS Version: F10a

RAM: 2x16GB G-Skill 6000MHZ CL30

PSU: be quiet 1000w Dark Power 11

Case: fractal torrent

Operating System & Version: WINDOWS 10 Enterprise 19045

GPU Drivers: Adrenaline 22.40.43.05 tlou beta driver

Chipset Drivers: AMD X670E CHIPSET DRIVERS VERSION 5

Description of Original Problem: can't set up a custom resolution. In this case 3840x1646

Troubleshooting: I've tried setting it via AMD Adrenaline but it won't let me. G.Clock invalid error or "your display is incompatible with this resolution" But it isn't. It worked fine on NVIDIA cards