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In KDE on Wayland, I'm having issues running multiple refresh rates (lemmy.world)

submitted 4 months ago by DigDoug@lemmy.world to c/linux4noobs@lemmy.world

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I have a 144Hz ultrawide monitor, and recently I bought another little monitor for music/Discord. However, even though I'm running it on Wayland, If I try to change the framerate of the big monitor in KDE settings, it spits out an error (something about the framerate not being compatible with the driver - unfortunately I can't check it anymore) and doesn't change it. This is on Arch running the latest plasma-meta, and an AMD GPU.

I've tried looking for a solution to this problem, but practically all of them just say "use Wayland", which I already am. I found a Debian Bookworm USB I had lying around and thought I'd see if the issue persisted. It turns out that it doesn't - It works perfectly.

Does anybody have any ideas as to why this doesn't work on a newer version of Plasma?

I'm not necessarily against switching to Debian to get this working, it's just that Arch is what I'm used to.

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[–] Cort@lemmy.world 2 points 2 months ago* (last edited 2 months ago)

I have a 60hz and 144hz monitors on my desk, and I've found that sometimes the frame rate only changes for the monitor where the settings window was opened from.

If you right click on the desired monitor's desktop and change screen settings/refresh rate from there, it'll actually work, usually.