Application: plasmashell (5.19.2)

Qt Version: 5.15.0
Frameworks Version: 5.71.0
Operating System: Linux 5.7.5-1-default x86_64
Windowing system: X11
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
Crash when using the Plasma applet to switch output from HDMI speakers (the screen's built in speakers) to Arctis Wireless 7 Pro (USB connected, with separate DAC).

The crash can be reproduced sometimes.

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

[KCrash Handler]
#4  0x00007f828c39a313 in QtPrivate::indexOf<QWidget*, QWidget*>(QList<QWidget*> const&, QWidget* const&, int) (from=0, u=@0x7ffeda432660: 0x561cf1a9c680, list=...) at ../../include/QtCore/../../src/corelib/tools/qlist.h:119
#5  0x00007f828c39a313 in QList<QWidget*>::indexOf(QWidget* const&, int) const (from=0, t=@0x7ffeda432660: 0x561cf1a9c680, this=0x561cec52d110) at ../../include/QtCore/../../src/corelib/tools/qlist.h:1026
#6  0x00007f828c39a313 in QList<QWidget*>::removeAll(QWidget* const&) (this=0x561cec52d110, _t=@0x7ffeda432660: 0x561cf1a9c680) at ../../include/QtCore/../../src/corelib/tools/qlist.h:936
#7  0x00007f828c3aaa16 in QWidget::removeAction(QAction*) (this=0x561cf1a9c680, action=<optimized out>) at kernel/qwidget.cpp:3167
#8  0x00007f827521c7ab in  () at /usr/lib64/qt5/qml/org/kde/plasma/components/libplasmacomponentsplugin.so
#9  0x00007f828c3740cf in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x561cf1a9c540, e=0x7ffeda4327c0) at kernel/qapplication.cpp:3671
#10 0x00007f828b7c7b0a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x561cf1a9c540, event=0x7ffeda4327c0) at ../../include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#11 0x00007f828b7fbd16 in QObjectPrivate::setParent_helper(QObject*) (this=0x561cf1b5c750, o=0x0) at kernel/qobject.cpp:2149
#12 0x00007f828b7fc228 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1093
#13 0x00007f8275218a03 in  () at /usr/lib64/qt5/qml/org/kde/plasma/components/libplasmacomponentsplugin.so
#14 0x00007f828b7f37ef in QObject::event(QEvent*) (this=0x561cf1a51570, e=0x561cf18c0e10) at kernel/qobject.cpp:1301
#15 0x00007f828c3740cf in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x561cf1a51570, e=0x561cf18c0e10) at kernel/qapplication.cpp:3671
#16 0x00007f828b7c7b0a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x561cf1a51570, event=0x561cf18c0e10) at ../../include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#17 0x00007f828b7ca531 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x561cec542770) at kernel/qcoreapplication.cpp:1815
#18 0x00007f828b81f8c3 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x561cec638ee0) at kernel/qeventdispatcher_glib.cpp:277
#19 0x00007f8289c2f2c7 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#20 0x00007f8289c2f648 in  () at /usr/lib64/libglib-2.0.so.0
#21 0x00007f8289c2f6ff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f828b81ef4f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x561cec635d50, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#23 0x00007f828b7c64cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffeda432c80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#24 0x00007f828b7ce730 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#25 0x0000561cea4e8c87 in  ()
#26 0x00007f828b197cca in __libc_start_main () at /lib64/libc.so.6
#27 0x0000561cea4e979a in _start ()
[Inferior 1 (process 5273) detached]

Possible duplicates by query: bug 423738, bug 423713, bug 423675, bug 423584, bug 423559.

Reported using DrKonqi