If I open the desktop file settings of an application to modify e.g. the run command, I cannot use copy & paste on Wayland. What works is to copy & paste text from the desktop file settings window to another program, but copy & paste from another program to the desktop file settings doesn't. Example: Try to paste the following text "GTK_USE_PORTAL=1" to Firefox as a run command, it will not work and you have to type it. STEPS TO REPRODUCE 1. Copy some text 2. Open the .desktop file settings of any program 3. Paste Text OBSERVED RESULT Nothing is pasted or only an old text EXPECTED RESULT Copy & paste should work SOFTWARE/OS VERSIONS KDE Plasma Version: 5.14.4 KDE Frameworks Version: 5.53 Qt Version: 5.12
I assume you're trying to copy from an X app? Does it paste correctly into another wayland place, like kate?
I run all KDE apps on Wayland, so I've tried to copy from Konsole/Kate. If I copy from e.g. Firefox on XWayland it is the same issue. Yes, all other applications (Wayland or XWayland) do copy and paste correctly.
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reopening
Here I copied a text from Kate (Wayland) to Opera browser (Xwayland) as expected. So I copied a text from Opera browser to Kate and it crashed. Apparently it crashed, because it disappeared from my screen but coredumpctl shows no Kate crash. Operating System: Arch Linux KDE Plasma Version: 5.15.1 KDE Frameworks Version: 5.55.0 Qt Version: 5.12.1
bug 404210 seems related/duplicate.
Still doesn't work with Plasma 5.17 Beta
Still doesn't work Operating System: Arch Linux KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.69.0 Qt Version: 5.15.0 Kernel Version: 5.6.5-arch3-1
This was fixed in Plasma 5.21.