I’m having issues with KDE seemingly doubling my monitors refresh rate in small bursts, which is causing stuttering and smoothness issues.

A bit of background on the setup:

I have a 1080p monitor at 144hz a 1440p monitor also a 144hz external capture card that is a duplicate of of the 1440p monitor also able to accept 144hz.

What I’m seeing is the main monitor (1440p) frame rate with jump between 144 and 288fps refresh rate and i’m not sure how to stop the behavior or even really how best to start troubleshooting it.

Any advice would be awesome

Images / Video of issue here: https://imgur.com/a/T6HzVD6

  • azvasKvklenko
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    6 hours ago

    The problem isn’t reproducible without the display cloning to your Elgato capture card, right? Could you try a different compositor like Sway, Wayfire, Hyprland or cosmic-comp? If it works well there, you could report issue on https://bugs.kde.org/ in kwin project.