PC Graphics

[Sterex]

Hello,

I was casually watching a stream when all of a suden, my screens started to display multiple red artifacts. I restarted my computer but it didn't fix this problem, and realized there are other symptoms :
- When both my screens are plugged in, Windows detects only the second screen but screen 1 displays a duplicate of screen 2.
- When one screen is plugged in, Windows sometimes detects it as a 800x600 screen.
- When I take a screenshot, the red artifacts are not saved on the image file.
- Windows literally says "This peripheral doesn't use any resource cause it has a problem".
- Computer still boots up, but I haven't tried to run a game and I'd rather not.

So I'm pretty sure it's a GPU problem and here's what I tried so far :
- Change plug slots (I have 3 DP and 1 HMDI)
- Change the GPU slot (I have 2 slots for a GPU on my MB)
- Download the latest GPU drivers

Nothing solved the problem and I'm kind of desperate by seeing the prices of GPUs. I don't have yet a spare GPU to make sure it's a GPU problem.

Do you guys have experienced this problem before ? How did you solved it ? Do you think of another solution ?

Thank you for your help.

I use a RX 590 Series GPU, screen 1 is 1440p 144Hz, screen 2 is 1080p 60Hz.

And here are some picture I took of the red artifacts :