Grey horizontal lines on monitor

[Merlbert]

Greetings LTT Forum!

I have a problem with my monitor. For several weeks now, my monitor starts displaying grey lines on darker backgrounds. They also flicker a little bit and it get's more intense, when I play a game. I own the monitor since october 2020 and the issue came out of nowhere in the middle of november 2021. When I change the refresh rate of my monitor the issue sometimes disappears temporarily, but returns after some minutes.

What I already tried:

• new DP cable
• old GPU used
• other computer
• switched to a HDMI cable
• old monitor on the 3080 (where I don't have this issue)
• reinstallation of the graphics driver
• reset the monitor to factory settings

Specs:

Intel Core i7 10700k

NVIDIA GeForce RTX 3080

32Gigs of Ram

Monitor: Asus ROG Swift PG43UQ

 

I'm trying to avoid to RMA the monitor, as it takes several weeks. This is the last thing I want to do, as I hope it's something easier.

I attached an image taken with my phone of the issue.

 

Thanks in advance and excuse my english. I'm from Germany