SUMMARY STEPS TO REPRODUCE 1. start a plasma session and open a "konsole" window 2. suspend 3. resume 4. click on a tab or try to use the mouse within a konsole window OBSERVED RESULT The konsole window shows weird behaviour, when doing a single mouse click, the reaction is like normally done for double clicks. This has nothing to do with the mouse, other windows (e.g. Firefox) behave normally. EXPECTED RESULT Mouse events should be handles as before. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Gentoo Linux 2.15 KDE Plasma Version: 6.1.5 KDE Frameworks Version: 6.6.0 Qt Version: 6.7.2 ADDITIONAL INFORMATION I have configured the desktop to use single clicks instead of double clicks for starting programs. The behavior is specific to all instances of the program which have been been there before suspending, when I start a new instance in parallel it behaves normally - that means: I can have two instances (an old/resumed one and a freshly started one) side by side on the same screen and one is behaving wrong, the other one works fine. I have not found a workaround, closing the window and starting a new instance seems to be the only way out. Sometimes kdevelop shows the same strange behaviour. Only restarting helps.
update: This also happens when switching to a text console and then switching back into X11. In the meanwhile I also switched the X11 input driver from evdev to libevent - no change :-(
I tried "qterminal" instead of "konsole" and it shows the same misbehaviour after suspend/resume, so I guess it has nothing to do with the application itself but with the framework.
problem is gone, no idea why, probably one of the latest Gentoo updates