Created attachment 149224 [details]
Screenshot

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. Upgraded to Kubuntu 22.04 from Kubuntu 21.10 with Plasma Wayland Working
2. Try to log into Plasma Wayland. 



OBSERVED RESULT : instant crash to black screen.  
In fact loging in by wayland only worked once, and without sound, never again. 


EXPECTED RESULT: Getting a beautiful KDE Plasma workspace to use. 


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: PlasmaShell 5.24.4, Kubuntu 22.04  QT 5.15.3, Frameworks 5.920, Linux 5.15.0-33
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Application: plasmashell (5.24.4)

Qt Version: 5.15.3
Frameworks Version: 5.92.0
Operating System: Linux 5.15.0-33-generic x86_64
Windowing System: Wayland
Distribution: Ubuntu 22.04 LTS
DrKonqi: 5.24.4 [KCrashBackend]

-- Information about the crash:
<In detail, tell us what you were doing  when the application crashed.>

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (no_tid=0, signo=6, threadid=140556172900800) at ./nptl/pthread_kill.c:44
#5  __pthread_kill_internal (signo=6, threadid=140556172900800) at ./nptl/pthread_kill.c:78
#6  __GI___pthread_kill (threadid=140556172900800, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#7  0x00007fd5ccf91476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007fd5ccf777f3 in __GI_abort () at ./stdlib/abort.c:79
#9  0x00007fd5cd433ba3 in QMessageLogger::fatal(char const*, ...) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fd5cb6103e4 in QtWaylandClient::QWaylandDisplay::checkError() const () from /lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#11 0x00007fd5cb61111a in QtWaylandClient::QWaylandDisplay::flushRequests() () from /lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#12 0x00007fd5cd6947b8 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fd5cd6b6082 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fd5cd65b74b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fd5cd663ce4 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x000055bc82bcedce in ?? ()
#17 0x00007fd5ccf78d90 in __libc_start_call_main (main=main@entry=0x55bc82bcdf70, argc=argc@entry=1, argv=argv@entry=0x7fff1164e3a8) at ../sysdeps/nptl/libc_start_call_main.h:58
#18 0x00007fd5ccf78e40 in __libc_start_main_impl (main=0x55bc82bcdf70, argc=1, argv=0x7fff1164e3a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1164e398) at ../csu/libc-start.c:392
#19 0x000055bc82bceef5 in ?? ()
[Inferior 1 (process 73930) detached]

Report to https://bugs.kde.org/