I am having a problem with my Linux desktop and hoping this community can help. The hardware is only about a year old: CPU: AMD Ryzen 7 7800X3D, GPU: AMD Radeon RX 7900XTX. I am running KDE Plasma 6.4.4 on Wayland. My distro is Feodra 42, and I keep up with regular updates. Kernel version is 6.15.9.
Lately, I have been getting a flicker of horizontal white stripes occasionally coming across my monitors. It does not seem to matter what the program on the screen is. They’re not making it impossible to use the computer, but it is very distracting when it happens. I am also worried that it may be the hardware failing, but I am hoping it’s just a driver issue.
Is this a known issue with AMD drivers? Part of my concern is that last year I installed amdgpu and rcom from the AMDGPU and ROCm repos to play with AI models locally. Now I am wondering if that is messing with my video drivers. How can I tell which ones are being used? If I want to go back to the stock drivers, do I just uninstall the amdgpu package with dnf?
to be honest, I feel as if I may have jumped the gun somewhat by suggesting this could be display underflow. I gather how tricky this could be but if you could somehow capture some footage of this in progress, I’d be curious to see it.
Does this white line show up across both displays in tandem?
It’s very quick and unpredictable. I have not noticed it across both screens at the same time, but can’t rule that out. They’re pretty thin lines and usually only one at a time, like a scan line on a TV. It just started becoming more noticeable recently so I’ll try to keep track of when it happens.
If it’s captured via DVR system, it’d likely be a UMD issue. If not, I would attribute it to DAL / KMD
Try to use the instant replay feature in GPU screen recorder to see if you can cap it in there?
I didn’t think it would show up in a screen recording, but I can try that. Thanks again
I don’t think it would either to be honest, but it’s a good way to determine if a form of visual corruption is caused by the display abstraction layer, or the gfx umd (or something else entirely, like the OS). I use the same technique at work 😅