I'm having problem with any driver newer than 21.1.1. Only available resolution is 640x480. Tried different ports, cables, DP/HDMI, reset, factory reset no result... Custom resolution does nothing. Is there any fix to it? Video card RX 5700 XT. Connected via DP. Monitor Gigabyte Aorus 2K 27'. With 21.1.1 it works fine.
I own an Aorus F127Q. Same problem here. I installed the latest 21.3.1 and my monitor was locked as a Generic PnP Monitor 640x480. So I uninstalled and go back to AMD Raedon v. 20.12.1 and at least Windows 10 Pro x64 still detects my monitor as a Generic PnP, but with the refresh rate of 165hz and 2560x1440... so for the moment, this is my temporary solution. Thanks.
1) Start by unplugging the display cable from the monitor while PC and monitor are powered up.
Plug it back in after ~20 seconds delay and see if you get option to change resolution then.
2) If that does not change anything, then try to turn the display off (power switch or pull cable)
Then after ~20 seconds reconnect the cable or enable the power switch again.
3) Next best option could be to go into Windows Device Manager and unistall all PnP Monitors,
including the hidden (unplugged) ones it still lists (option can be enabled via menu).
4) try booting into Windows Safe Mode and see if the resolution can be changed there.
You might want to try and run System File Checker via Windows Command Prompt.
... and see if that brings up any errors
Tried all three options. Nothing changed. Did not tried 4. Some people on this forum got it working with HDMI, but it's not an option for me, because video card has only one HDMI port and I need it for other device which btw works fine in 4K. It's some kind of Gigabyte Aorus FI27Q and newer AMD driver bug.
@mess yes, I have noticed the other topic about Gigabyte Aorus FI27Q, after my initial post.
With this many people having the exact same issue, its just a matter of time until AMD might find a fix.
Thanks for trying my provided troubleshooting steps anyway.
Maybe @amdmatt can forward, that these steps did not change anything, to the dev team.
The first thing I did was try all the four options. Nothing work. But for the moment, I deleted 21.3.1 v. and returned to 20.5.1 as temporary solution... and I say "temporary", because after I installed and then uninstalled v.21.3.1 the monitor performance is not the same at all.