this post was submitted on 27 Jun 2025
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Strange graphical issue after a power failure (sh.itjust.works)
submitted 6 days ago by [email protected] to c/[email protected]
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System is Fedora KDE, graphics card is an Asrock Radeon 5900GRE, display is a Gigabyte M34WQ (1440p ultrawide 144Hz refresh rate) attached via DisplayPort.

Despite being on a UPS (which...we're also going to have to talk about) my system was apparently shut down by a thunderstorm. I booted it up, and the display was acting glitchy. I would get two mouse cursors, and below the mouse cursor the screen would go a solid color, as if it was glitching on a pixel and then displaying that from there down.

Switching to a lower refresh rate made the problem go away, I've switched back up and it seems to be alright. A second 1080p60 monitor attached via HDMI didn't show any problem.

Some googling didn't turn up exactly what I was experiencing. Can anyone help troubleshoot this? It seems okay for the moment but I'm hoping I don't have a wounded GPU.

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[–] [email protected] 0 points 6 days ago

That looks like a Wayland issue to me tbh.