SUMMARY I try to use a mirrored display setup in a Plasma wayland session, but couldn't make the panel stay on the screen. - When I click the "Display Configuration" tray icon to set "Unify Outputs", the outputs are unified correctly but the plasma panel hides immediately. - If I use systemsettings to drag one display on top of the other, it works correctly (the panel is shown and the outputs are unified); but when I turn off one of the monitors, the panel is always gone again. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux KDE Plasma Version: 5.25.5 KDE Frameworks Version: 5.98.0 Qt Version: 5.15.6
Do both screens have the same resolution and DPI? Or do they differ? Did this work in the past in the Wayland session and then stop working? Or has it already been this way or this is the first time you tried it? Does this work as expected in the X11 session?
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Yes, both screens have the same resolution and DPI. This is the first time I try a wayland setup, and under X11 it just works as expected. I have tried to drag the panel from plasma's "Manage Panels and Desktops" and sometimes it works. On next boot or if I close/re-open one monitor, Plasma will misbehave again by either disappear and re-appear but staying over windows (spacing issue) or just disappear completely.
Thanks for the info.
I have the same problem: one of the display does not have the panel. But in my case, I suspect the problem to come from the fact that the two screens have different aspect ratio. So the internal screen of the laptop is truncated. I would rather expect to have black borders left and right of the internal screen.
I'm not able to reproduce this issue in Plasma 5.27, which has a *ton* of multi-monitor improvements to fix issues such as this one. Felix, can you please upgrade to 5.27.4 or later and try again? Thanks!
Thanks. As of 5.27.5 now it has indeed improved a lot. I can still reproduce a misplacement issue with the following steps: - Disconnect the laptop from external display - Put laptop into sleep (suspend to ram) - Connect the external display while laptop is sleeping - Wake up laptop The plasma panel is then shown on top of maximized windows (instead of taking place and making maximized windows shrink to a smaller size). After another lid close-open cycle, this would be fixed.
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!