this post was submitted on 27 Oct 2025
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The app didn't seem to respect the environment variable for X11 I tried to set for that one app.
I have an odd monitor configuration, one 2k high refresh rate, HDR monitor in the center, 1080p monitors to the left, right, and above. The right is also a higher refresh rate.
I could get it to work in Ubuntu... inconsistently. Sometimes I'd log in and have one 640x480 monitor in the center. PopOS just worked.
that should only matter if it would run in wayland mode and you want to override it to run in x11 mode.
though, maybe omnissa tries to use wayland mode, but does that very poorly, and in that case you would actually want to override this.
there's multiple ways to disable wayland for an app (actually what you do is convince the app to not use wayland), and it depends on the framework the app uses. but setting the environment variable
WAYLAND_DISPLAY=(like this, to the empty value) should work, as lots of apps look for that to know if they should use wayland.usually you set the environment variables for an app in its own launcher icon's editor menu. there's other ways too but this does not require using the terminal.
yeah that's a bit complicated. but I would expect kde plasma to handle it well. it has a display config menu a bit like windows has, where you can drag each display to where it should be. be aware though that it does not affect the user selector screen that you see between a fresh boot and the first login; that's configurable too but in a different way.