Application: plasmashell (5.19.4)

Qt Version: 5.14.2
Frameworks Version: 5.72.0
Operating System: Linux 5.4.0-42-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.19

-- Information about the crash:
- Unusual behavior I noticed:
Bottom panel missed every time after reboot. Bug happens only when external monitor connected to my laptop.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[KCrash Handler]
#4  Plasma::Applet::immutability (this=0x0) at ./src/plasma/applet.cpp:491
#5  0x00007fa4c304233d in Plasma::Applet::destroy (this=0x0) at ./src/plasma/applet.cpp:303
#6  0x00007fa4b929ccd8 in SystemTrayContainer::~SystemTrayContainer (this=0x557eb058e410, __in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:413
#7  0x00007fa4b929cd3d in SystemTrayContainer::~SystemTrayContainer (this=0x557eb058e410, __in_chrg=<optimized out>) at ./applets/systemtray/container/systemtraycontainer.cpp:34
#8  0x00007fa4c10bdd2e in QObjectPrivate::deleteChildren (this=0x557eb0534e40) at kernel/qobject.cpp:2123
#9  0x00007fa4c10c7696 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#10 0x00007fa4c3046f6d in Plasma::Containment::~Containment (this=0x557eb0534d50, __in_chrg=<optimized out>) at ./src/plasma/containment.cpp:84
#11 0x00007fa4c10c1043 in QObject::event (this=0x557eb0534d50, e=0x557eb064fc80) at kernel/qobject.cpp:1326
#12 0x00007fa4c1c00cc3 in QApplicationPrivate::notify_helper (this=this@entry=0x557eb025fd20, receiver=receiver@entry=0x557eb0534d50, e=e@entry=0x557eb064fc80) at kernel/qapplication.cpp:3685
#13 0x00007fa4c1c09f40 in QApplication::notify (this=0x7ffeec0bbeb0, receiver=0x557eb0534d50, e=0x557eb064fc80) at kernel/qapplication.cpp:3431
#14 0x00007fa4c109378a in QCoreApplication::notifyInternal2 (receiver=0x557eb0534d50, event=0x557eb064fc80) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#15 0x00007fa4c1095f74 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x557eb0254f90) at kernel/qcoreapplication.cpp:1815
#16 0x00007fa4c10ecb87 in postEventSourceDispatch (s=0x557eb02cb550) at kernel/qeventdispatcher_glib.cpp:277
#17 0x00007fa4bf485fbd in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fa4bf486240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fa4bf4862e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa4c10ec1e2 in QEventDispatcherGlib::processEvents (this=0x557eb02c6e90, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#21 0x00007fa4c109224b in QEventLoop::exec (this=this@entry=0x7ffeec0bbd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#22 0x00007fa4c109a296 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#23 0x0000557eaff51c09 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:224
[Inferior 1 (process 1638) detached]

The reporter indicates this bug may be a duplicate of or related to bug 420245.

Possible duplicates by query: bug 420245, bug 417603, bug 415304, bug 411221, bug 377301.

Reported using DrKonqi