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Force certain program to use x11 mode on wayland? (lemmy.ml)

submitted 8 months ago* (last edited 8 months ago) by schizoidman@lemmy.ml to c/kde@lemmy.kde.social

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I have a 3D printing software that does not display well on Wayland. Instead of relogging to start a x11 session is there a way to force that one software to display in x11 instead of Wayland?

Edit

AddingQT_QPA_PLATFORM=xcb to the enviroment variables was the solution for me.

Thanks to everyone for the help.

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[–] KaRunChiy@kbin.run 14 points 8 months ago (1 children)

if its a qt application then run in a console "QT_QPA_PLATFORM=xcb program_name", if it's a gtk application i think it's "GDK_BACKEND=x11" though I'm not entirely sure.

I have to do this with LMMS as on sway click and drag doesn't work for some odd reason

[–] RedWeasel@lemmy.world 4 points 8 months ago (1 children)

Additionally once you figure out the environment variable you can add in to the .desktop file so it will launch from a launcher in that way, though updates will reset that.

On arch wiki is a page on wayland which includes info on toolkits, though you may need to figure out the x11 option it will include the variable/option needed. https://wiki.archlinux.org/title/wayland#GUI_libraries

[–] fossphi@lemm.ee 5 points 8 months ago

though updates will reset that.

Copy the .desktop file from root (/usr/share/applications) to the local directory (~/.local/share/applications), then your package manger won't overwrite your changes

https://wiki.archlinux.org/title/desktop_entries

See section 6.1, Modify desktop files