Application: systemsettings (4.11.22)
KDE Platform Version: 4.14.14
Qt Version: 4.8.7
Operating System: Linux 4.4.2 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
After I have install Apple Mac on Virtualbox, there is no sound not on Virtualbox and not on Linux. When I tried to set the settings in KDE System Settings it keeps crashing as soon as you click on Multimedia

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f729a0ea3f8 in raise () at /lib64/libc.so.6
#7  0x00007f729a0ebffa in abort () at /lib64/libc.so.6
#8  0x00007f729a0e2c17 in __assert_fail_base () at /lib64/libc.so.6
#9  0x00007f729a0e2cc2 in  () at /lib64/libc.so.6
#10 0x00007f7278fff6df in  () at /usr/lib64/libasound.so.2
#11 0x00007f72792d96d4 in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#12 0x00007f72792d39ee in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#13 0x00007f72792d3b1e in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#14 0x00007f7294d9223a in Phonon::GlobalConfig::videoCaptureDeviceListFor(Phonon::CaptureCategory, int) const () at /usr/lib64/libphonon.so.4
#15 0x00007f7294d85c8c in Phonon::BackendCapabilities::availableVideoCaptureDevices() () at /usr/lib64/libphonon.so.4
#16 0x00007f7279b22080 in  () at /usr/lib64/kde4/kcm_phonon.so
#17 0x00007f729b0d7e60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/qt/lib/libQtCore.so.4
#18 0x00007f729b0d7e60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/qt/lib/libQtCore.so.4
#19 0x00007f7294d8f592 in Phonon::Factory::backend(bool) () at /usr/lib64/libphonon.so.4
#20 0x00007f7294d9429a in Phonon::GlobalConfig::audioOutputDeviceListFor(Phonon::Category, int) const () at /usr/lib64/libphonon.so.4
#21 0x00007f7279b25279 in  () at /usr/lib64/kde4/kcm_phonon.so
#22 0x00007f7279b25c18 in  () at /usr/lib64/kde4/kcm_phonon.so
#23 0x00007f7279b1e0a7 in  () at /usr/lib64/kde4/kcm_phonon.so
#24 0x00007f7279b1e8ab in  () at /usr/lib64/kde4/kcm_phonon.so
#25 0x00007f729b8d47d2 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () at /usr/lib64/libkdecore.so.5
#26 0x00007f729d1913ed in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () at /usr/lib64/libkcmutils.so.4
#27 0x00007f729d197067 in  () at /usr/lib64/libkcmutils.so.4
#28 0x00007f729d198305 in KCModuleProxy::realModule() const () at /usr/lib64/libkcmutils.so.4
#29 0x00007f729d198703 in KCModuleProxy::showEvent(QShowEvent*) () at /usr/lib64/libkcmutils.so.4
#30 0x00007f729bdea590 in QWidget::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#31 0x00007f729bd9754c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#32 0x00007f729bd9e01c in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#33 0x00007f729cd3c88a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#34 0x00007f729b0c4c3d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#35 0x00007f729bde7b2b in QWidgetPrivate::show_helper() () at /usr/lib64/qt/lib/libQtGui.so.4
#36 0x00007f729bde79d2 in QWidgetPrivate::showChildren(bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#37 0x00007f729bde7a7f in QWidgetPrivate::show_helper() () at /usr/lib64/qt/lib/libQtGui.so.4
#38 0x00007f729bde9902 in QWidget::setVisible(bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#39 0x00007f729bde79e7 in QWidgetPrivate::showChildren(bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#40 0x00007f729bde7a7f in QWidgetPrivate::show_helper() () at /usr/lib64/qt/lib/libQtGui.so.4
#41 0x00007f729bde9902 in QWidget::setVisible(bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#42 0x00007f729bdcd2e2 in QStackedLayout::setCurrentIndex(int) () at /usr/lib64/qt/lib/libQtGui.so.4
#43 0x00007f729cd6bbbd in  () at /usr/lib64/libkdeui.so.5
#44 0x00007f729b0d7e60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/qt/lib/libQtCore.so.4
#45 0x00007f729c2f1e77 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () at /usr/lib64/qt/lib/libQtGui.so.4
#46 0x00007f729c2f7163 in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () at /usr/lib64/qt/lib/libQtGui.so.4
#47 0x00007f729c2f7a53 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib64/qt/lib/libQtGui.so.4
#48 0x00007f729cd6e7cb in  () at /usr/lib64/libkdeui.so.5
#49 0x00007f729c2c6c33 in QListView::setSelection(QRect const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib64/qt/lib/libQtGui.so.4
#50 0x00007f729c2a3256 in QAbstractItemView::mousePressEvent(QMouseEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#51 0x00007f729bdeab39 in QWidget::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#52 0x00007f729c19208e in QFrame::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#53 0x00007f729c2a8f83 in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#54 0x00007f729b0c4da6 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#55 0x00007f729bd9752c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#56 0x00007f729bd9e183 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#57 0x00007f729cd3c88a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#58 0x00007f729b0c4c3d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#59 0x00007f729bd9d81d in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#60 0x00007f729be14bb9 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#61 0x00007f729be12eb5 in QApplication::x11ProcessEvent(_XEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#62 0x00007f729be3aa02 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#63 0x00007f7291772787 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#64 0x00007f72917729b8 in  () at /usr/lib64/libglib-2.0.so.0
#65 0x00007f7291772a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#66 0x00007f729b0f30de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#67 0x00007f729be3aaa6 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#68 0x00007f729b0c3601 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#69 0x00007f729b0c3915 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#70 0x00007f729b0c8ef9 in QCoreApplication::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#71 0x000000000040b053 in  ()
#72 0x00007f729a0d57d0 in __libc_start_main () at /lib64/libc.so.6
#73 0x000000000040b169 in _start ()

Reported using DrKonqi