Radeon RX 6700 xt permanantly altering monitors -- Am I crazy?

[Coleej]

I recently hit on Newegg’s Shuffle and built a PC around an AMD RX 6700xt XFX Merc 319. I haven’t bought hardware in years, so I also picked up a Pixio P277 Prime.

I build the PC, install Pop_OS, and play Doom Eternal for a couple days with gorgeous graphics. I haven’t played anything put pixeI-art indie games with spotty Linux comparability for a long time. I then installed Windows to try out the newest online shooters and everything was again amazing.

However, I eventually upgraded the AMD drivers through their control center on Windows. Sometime after that I notice a black border around my screen, between it and the monitor’s bezel.

However, I cannot be sure that it appeared after the driver update. Anyways, no display setting affected it, so I upgraded the BIOS and downgraded the GPU’s driver without affect.

So, I try booting back into Pop_OS and using another laptop with the Pixio. In both cases the black border remained. At this point, I’m blaming Pixio and contact them for support. Afterwards, I plug a work monitor into the 6700xt, which then displays Pop_OS with the same border. I plug this monitory back into my workstation, but the border remains! I can with near certainty attest that this monitor did not have a border before.

So, I look at all three monitors which have been hooked up to the 6700xt and all three now have the same black border. It is wider on the top and sides than on the bottom.

At this point, I have to suspect the 6700xt, but this seems crazy. I’ve never heard of something like this and a cursory google search didn’t return anything similar.

[Zibob]

I have no idea why it is permenant, but it looks like an over scan setting gone wrong.

The drivers, for nvidia for sure, have the ability to edit the EDID which could do something like this, I have not looked recently but you used to have to use a separate non AMD tool for editing EDID info for use with AMD cards. This was for monitor overclocking bout could be used to edit resolution and a whole mess of sub settings. That is a really long shot but potentially possible.

[mehmedbasic]

I had an issue with a vega displaying colors in rgb 4:2:2 because the monitor said it supported it and the card assumed it was a tv. The fix was to use dvi instead of hdmi.

[Olol]

AMD supports it as well, it is called costum resolution:
https://www.amd.com/en/support/kb/faq/dh-032
Of course that means you have to deal with pretty low-level stuff

[Zibob]

Ah cool, when I used to do this they didn’t, good to see it is there now.