This concerns a multi monitor setup with different refresh rates (e. g. 1 with 60hz and 1 with 144hz).

The text below is part of the linked article. If you have both nvidia and picom installed, check both sections.

NVIDIA (propietary)

  • Open nvidia-settings
  • Go to ‘X Server Display Configuration’
  • In the bottom right, Click on ‘Advanced…’ if it says ‘Advanced…’
  • Make sure anything regarding ‘force composition pipeline’ is checked off
  • Make sure you selected the highest refresh rates possible. You can either select it through the settings, configure it with xrandr or with your DEs Display Settings, is applicable

picom

  • Make sure to start picom with --no-vsync

Misc

If it still doesn’t work, try settings these environment variables:

CLUTTER_DEFAULT_FPS=<your highest refresh rate>
__GL_SYNC_DISPLAY_DEVICE=<your highest refresh rate display>
__GL_SYNC_TO_VBLANK=0

Find the DISPLAY_DEVICE name with xrandr | grep connected

Add the text block above to /etc/environment (Tip: Use EDITOR=<your editor, if EDITOR is not set anywhere else> sudoedit instead of sudo nano or sudo vim)

-> sudoedit /etc/environment

  • roon@lemmy.ml
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    1 year ago

    I don’t seem to have a tab named ‘X Server Display Configuration’ 🤔

    • vepro@lemmy.worldOP
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      1 year ago

      Only difference in info I can see is that display name ends with :0 instead of :0.0. Depending on your DE, you might fiddle with display settings there. Are you running X natively and not XWayland?