The behavior of kscreen is so erratic at every plug in/out event that I don't know by what to start: - no recalling screen configurations per model (e.g. external monitor on the right side at office, upper side at home) - not detecting some plug in event - sometimes leading to a black main screen (suddenly checked as deactivated) - most of time, after resume, main screen is blank and you need an external monitor to actually get something (very convenient during a trip) - sometimes needing double clicking on "apply" to get what you asked - sometimes a total misalignment of screens - ... and probably many more buggy situation that I am forgeting It is really catastrophic and is a major regression compared to KDE 4. We are many years back in term of Linux multiscreen support ! Reproducible: Always
Assigning to KScreen, which is where the most important stuff is going on. Some different stuff going on there, maybe some of them are part of kwin.
Created attachment 93101 [details] plasmashell stacktrace I am not sure if this is linked, but here is a stacktrace that I got after unplugging my external screen. I could reproduce it every time I did that.
More info on that bug in 345544 It's in Qt. A fix is there, but not released *** This bug has been marked as a duplicate of bug 345544 ***