Nvidia and KDE Plasma running under Wayland is a bit hit and miss. Sometimes it’s fine (such as on an older gaming system I have), but on one of my systems in particular, I’d been wrestling with it for months, without success.
This week however, I may have finally put my finger on the settings that have made a critical difference, in my case at least. I wanted to share those here, in case it might be helpful to anyone else with similar ongoing issues.
This is assuming you’ve already done the typical Nvidia + Wayland steps, enabling modeset and fbdev, so I won’t detail those here.
-
Stuttering issues:
Disable VRR (variable refresh rate) / adaptive sync. Disabling this in the monitors built-in settings seems to also remove the option from Plasma’s display configuration, which is how I achieved this. -
Window sizing issues:
“Floating panels” is enabled by default (may be theme specific), but can cause issues for Nvidia GPU’s. To disable it, right-click on your start-bar andShow Panel Configuration, and make sure the “Floating panels” slider is disabled. If enabled, it might even give you a warning about this issue!
-
LibreOffice scaling issues:
The UI of LibreOffice might appear tiny or huge on different screens. This is a known issue when running multiple displays with different scaling settings. To fix this, add this as an environment variable for your LibreOffice shortcuts:
WAYLAND_DISPLAY=libreoffice
- Wayland hinting:
Previously, I had enabled hints for electron apps and Chromium based browsers, but disabling “Floating panels” (#2) has so far resolved those issues with electron and Chromium derivatives and I no longer use these settings.
And that’s it for now. I’m still having some issues with regards to colour calibration and display profiles lacking tonal range and appearing washed out under Wayland.