Why does my GPU (Rx7900XTX) throws random crashes

Issues & Assistance
1

I have switch last week from Microslop to CachyOs and now i got random crashes.

It doesnt matter if i only watch youtube/anime or play some games.

I tried alot to fix it with help of AI but now i dont know what to do.

Everytime it crashes my whole PC freezes and i got on my right Monitor this artefacts, the only way to get my pc usable again is to hold the Power button because nothing responds anymore.

I tried the LTS version and i get the same Error.

My thoughts it could be something with my RDNA3 GPU .

Could someone help me ?

OS: CachyOS x86_64
Host: X570 GAMING X
Kernel: Linux 6.19.12-1-cachyos
Display (E22W-5): 1920x1080 in 22", 60 Hz [External]
Display (K242HL): 1920x1080 in 24", 60 Hz [External]
Display (L24q-10): 2560x1440 @ 1.29x in 24", 60 Hz [External] *
DE: KDE Plasma 6.6.4
WM: KWin (Wayland)

CPU: AMD Ryzen 9 3900X (24) @ 3.89 GHz

GPU: AMD Radeon RX 7900 XTX [Discrete]
Memory: 7.41 GiB / 46.96 GiB (16%)
Swap: 0 B / 46.96 GiB (0%)

SPOILER_20260416_091447
SPOILER_20260416_0914471920×1920 849 KB

2

Every once in a while it still happens.

I used an Ai to try to find a solution, but i can find a fix.

I did memtest86+ without any Errors.

CPU 100% Load test for 1 hour no problems.

GPU 100% Load test for 1 hour no problems.

Tried different version of Mesa and still randomly it crashes.

Sometime i can play Games watch Anime for 1-3 days without any Problems and then it crashes 2 times a day.

3

After two weeks of tinkering to get it working, the problem persists. I then reinstalled CachyOS, and the error immediately reappeared.

I urgently need support.

My hardware worked perfectly fine on Windows 10.

I strongly suspect it’s related to the graphics driver.