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PC Graphics

xgbwei
Journeyman III

Weird discoloration artifacts on 7900 XTX

Hello, recently, I noticed a weird discoloration occasionally appearing, usually covering the right half of the screen. I noticed this recently when I started playing Factorio. The area it covers and intensity changes randomly when I move the camera. This also happens in FFXIV, although it's much more subtle and only affects the ground texture (not the foliage, trees, sky, etc.). Again, it would spontaneously appear and disappear when moving the camera. My specific card is a XFX Speedster Merc 310 7900 XTX.

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This happens in windowed and fullscreen, and the area it covers (on the physical screen) doesn't change when moving the window around. It doesn't show up in screenshots. I've seen more intense artifacts a few times (I remember it looked like only the green rgb channel was displaying), but couldn't reproduce them.

Windows and drivers are both updated. Everything is disabled in AMD Adrenalin (super resolution, image sharpening, freesync, etc.). The card is connected to two separate pcie power cables. Temperatures seem fine, especially in a game like Factorio, Adrenalin shows around 55 degrees average and 65 degrees junction temperature.

I've tried using a different port, underclocking, and messing with in-game settings. I suspect it could be a vram issue, but I can't find any way to underclock the vram (the minimum is 2500MHz, which is the default).

Any help would be appreciated.

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xgbwei
Journeyman III

Upon further inspection, I'm fairly sure this is a problem with the monitor. I had ruled this out since it seemed like the discoloration only affected certain textures and only in games, but I noticed that dragging windows on top of the games did have a small affect on the artifacting. Using a different cable didn't solve it, but luckily it seems to disappear when I switch to 120hz rather than 144hz, which I'm okay with.

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