Application: systemsettings5 (5.16.0)

Qt Version: 5.12.3
Frameworks Version: 5.59.0
Operating System: Linux 4.15.0-51-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
I opened System Settings, then clicked Input Devices and it opened as expected.  I can click Keyboard, Mouse and Joystick, on the menu, and I get the settings for each device as exptected. However, when I click Touchpad, it crashes every time. I have a Wacom tablet, which was connected when I open System Settings, but I am unable to view or change the settings for this device due to continual crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1370c63680 (LWP 3503))]

Thread 5 (Thread 0x7f133c6c6700 (LWP 3508)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007f136c1d2be6 in __GI___poll (fds=0x7f1334003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f13652334c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13652335dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f136cb15dcb in QEventDispatcherGlib::processEvents (this=0x7f1334000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f136cab703a in QEventLoop::exec (this=this@entry=0x7f133c6c5d40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f136c8de4ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f136a694115 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f136c8dfc72 in QThreadPrivate::start (arg=0x5583f6441610) at thread/qthread_unix.cpp:361
#9  0x00007f13675f16db in start_thread (arg=0x7f133c6c6700) at pthread_create.c:463
#10 0x00007f136c1df88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f134548b700 (LWP 3507)):
#0  0x00007f1365279379 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1365232eec in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1365233470 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13652335dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f136cb15dcb in QEventDispatcherGlib::processEvents (this=0x7f1340000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f136cab703a in QEventLoop::exec (this=this@entry=0x7f134548ad40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f136c8de4ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f136a694115 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f136c8dfc72 in QThreadPrivate::start (arg=0x5583f5e09f80) at thread/qthread_unix.cpp:361
#9  0x00007f13675f16db in start_thread (arg=0x7f134548b700) at pthread_create.c:463
#10 0x00007f136c1df88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f13554b1700 (LWP 3505)):
#0  0x00007f1365279370 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1365232eec in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1365233470 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13652335dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f136cb15dcb in QEventDispatcherGlib::processEvents (this=0x7f1350000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f136cab703a in QEventLoop::exec (this=this@entry=0x7f13554b0d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f136c8de4ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f136cf84015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f136c8dfc72 in QThreadPrivate::start (arg=0x7f136d1fbd80) at thread/qthread_unix.cpp:361
#9  0x00007f13675f16db in start_thread (arg=0x7f13554b1700) at pthread_create.c:463
#10 0x00007f136c1df88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f135d40c700 (LWP 3504)):
#0  0x00007f136c1d2bf9 in __GI___poll (fds=0x7f135d40bc68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f13671b5747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f13671b736a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f135fbc9578 in QXcbEventQueue::run (this=0x5583f5a48c90) at qxcbeventqueue.cpp:228
#4  0x00007f136c8dfc72 in QThreadPrivate::start (arg=0x5583f5a48c90) at thread/qthread_unix.cpp:361
#5  0x00007f13675f16db in start_thread (arg=0x7f135d40c700) at pthread_create.c:463
#6  0x00007f136c1df88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1370c63680 (LWP 3503)):
[KCrash Handler]
#6  0x00007f132b9ab444 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so
#7  0x00007f136db649e4 in QWidgetItemV2::updateCacheIfNecessary (this=0x5583f74489f0) at kernel/qlayoutitem.cpp:724
#8  0x00007f136db64ccd in QWidgetItemV2::maximumSize (this=0x5583f74489f0) at kernel/qlayoutitem.cpp:812
#9  0x00007f136db59252 in QBoxLayoutPrivate::setupGeom (this=this@entry=0x5583f73a3290) at kernel/qboxlayout.cpp:289
#10 0x00007f136db59ef6 in QBoxLayoutPrivate::setupGeom (this=<optimized out>) at kernel/qboxlayout.cpp:615
#11 QBoxLayout::sizeHint (this=<optimized out>) at kernel/qboxlayout.cpp:616
#12 0x00007f136db60a97 in QLayout::totalSizeHint (this=0x5583f74c6280) at kernel/qlayout.cpp:719
#13 0x00007f136dcd1062 in QScrollArea::sizeHint (this=<optimized out>) at widgets/qscrollarea.cpp:394
#14 0x00007f136db66907 in QStackedLayout::sizeHint (this=<optimized out>) at kernel/qstackedlayout.cpp:444
#15 0x00007f136db60a97 in QLayout::totalSizeHint (this=0x5583f5da9dd0) at kernel/qlayout.cpp:719
#16 0x00007f136db649e4 in QWidgetItemV2::updateCacheIfNecessary (this=0x5583f5da9a00) at kernel/qlayoutitem.cpp:724
#17 0x00007f136db64c7d in QWidgetItemV2::minimumSize (this=0x5583f5da9a00) at kernel/qlayoutitem.cpp:799
#18 0x00007f136db5d256 in QGridBox::minimumSize (this=0x5583f5da97b0) at kernel/qgridlayout.cpp:74
#19 QGridLayoutPrivate::setupLayoutData (this=this@entry=0x5583f5ccb540, hSpacing=hSpacing@entry=6, vSpacing=vSpacing@entry=6) at kernel/qgridlayout.cpp:810
#20 0x00007f136db5e6d3 in QGridLayoutPrivate::distribute (this=this@entry=0x5583f5ccb540, r=..., hSpacing=6, vSpacing=vSpacing@entry=6) at kernel/qgridlayout.cpp:940
#21 0x00007f136db5f4b7 in QGridLayout::setGeometry (this=0x5583f5dad0e0, rect=...) at kernel/qgridlayout.cpp:1385
#22 0x00007f136db60908 in QLayoutPrivate::doResize (this=this@entry=0x5583f5ccb540, r=...) at kernel/qlayout.cpp:592
#23 0x00007f136db61999 in QLayout::activate (this=<optimized out>) at kernel/qlayout.cpp:1117
#24 0x00007f136db8348f in QWidgetPrivate::setVisible (this=0x5583f7110920, visible=<optimized out>) at kernel/qwidget.cpp:8356
#25 0x00007f136db66ee7 in QStackedLayout::setCurrentIndex (this=0x5583f5da9dd0, index=1) at kernel/qstackedlayout.cpp:321
#26 0x00007f136db671f4 in QStackedLayout::setCurrentWidget (this=0x5583f5da9dd0, widget=widget@entry=0x5583f74c83e0) at kernel/qstackedlayout.cpp:376
#27 0x00007f136dce73c1 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=0x5583f74c83e0) at widgets/qstackedwidget.cpp:248
#28 0x00007f136f182eb0 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#29 0x00007f136cae8875 in QMetaObject::activate (sender=sender@entry=0x5583f5da41c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd61140530) at kernel/qobject.cpp:3795
#30 0x00007f136cae8f47 in QMetaObject::activate (sender=sender@entry=0x5583f5da41c0, m=m@entry=0x7f136cf646a0 <QItemSelectionModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd61140530) at kernel/qobject.cpp:3648
#31 0x00007f136ca6e8e7 in QItemSelectionModel::selectionChanged (this=this@entry=0x5583f5da41c0, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:458
#32 0x00007f136ca73450 in QItemSelectionModel::emitSelectionChanged (this=this@entry=0x5583f5da41c0, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1871
#33 0x00007f136ca7699b in QItemSelectionModel::select (this=0x5583f5da41c0, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338
#34 0x00007f136ca7094c in QItemSelectionModel::select (this=this@entry=0x5583f5da41c0, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1188
#35 0x00007f136ca6ec94 in QItemSelectionModel::setCurrentIndex (this=0x5583f5da41c0, index=..., command=...) at itemmodels/qitemselectionmodel.cpp:1413
#36 0x00007f136f181f3a in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#37 0x00007f136f182ce5 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#38 0x00007f136cae8875 in QMetaObject::activate (sender=0x5583f5dad590, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd61140990) at kernel/qobject.cpp:3795
#39 0x00007f136cae8f47 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f136cf645a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd61140990) at kernel/qobject.cpp:3648
#40 0x00007f136ca60496 in QAbstractItemModel::layoutChanged (this=<optimized out>, _t1=..., _t2=<optimized out>) at .moc/moc_qabstractitemmodel.cpp:570
#41 0x00007f136f189106 in KPageWidgetModel::addPage(KPageWidgetItem*) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#42 0x00007f1370882166 in ModuleView::addModule(KCModuleInfo*) () from /usr/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#43 0x00007f13708824ed in ModuleView::loadModule(QModelIndex const&) () from /usr/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#44 0x00007f1345b2bbf4 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#45 0x00007f1345b31957 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#46 0x00007f1345b31dc3 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/systemsettings_sidebar_mode.so
#47 0x00007f136a5419b3 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#48 0x00007f136a5424ee in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#49 0x00007f136a542689 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#50 0x00007f136a5076d9 in QV4::Object::virtualResolveLookupSetter(QV4::Object*, QV4::ExecutionEngine*, QV4::Lookup*, QV4::Value const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#51 0x00007f136a559a41 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#52 0x00007f136a55e406 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#53 0x00007f136a4ed52b in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#54 0x00007f136a6605f7 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#55 0x00007f136a6048e9 in QQmlBoundSignalExpression::evaluate(void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#56 0x00007f136a605c6b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#57 0x00007f136a640c12 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#58 0x00007f136a5e68e9 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#59 0x00007f136cae80af in QMetaObject::activate (sender=0x5583f7509300, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3664
#60 0x00007f13577e7308 in QQuickAbstractButtonPrivate::handleRelease(QPointF const&) () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#61 0x00007f1357804685 in QQuickControl::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#62 0x00007f136ac21648 in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007f136db4365c in QApplicationPrivate::notify_helper (this=this@entry=0x5583f5a278c0, receiver=receiver@entry=0x5583f7509300, e=e@entry=0x7ffd61143630) at kernel/qapplication.cpp:3736
#64 0x00007f136db4ab90 in QApplication::notify (this=0x7ffd61144700, receiver=0x5583f7509300, e=0x7ffd61143630) at kernel/qapplication.cpp:3483
#65 0x00007f136cab8d18 in QCoreApplication::notifyInternal2 (receiver=0x5583f7509300, event=0x7ffd61143630) at kernel/qcoreapplication.cpp:1060
#66 0x00007f136ac3af0d in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#67 0x00007f136ac3c0fb in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#68 0x00007f136ac3cd8e in QQuickWindowPrivate::handleMouseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#69 0x00007f136d31c655 in QWindow::event (this=0x5583f5dabb10, ev=<optimized out>) at kernel/qwindow.cpp:2341
#70 0x00007f136ac3e025 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#71 0x00007f136db4365c in QApplicationPrivate::notify_helper (this=this@entry=0x5583f5a278c0, receiver=receiver@entry=0x5583f5dabb10, e=e@entry=0x7ffd61143630) at kernel/qapplication.cpp:3736
#72 0x00007f136db4ab90 in QApplication::notify (this=0x7ffd61144700, receiver=0x5583f5dabb10, e=0x7ffd61143630) at kernel/qapplication.cpp:3483
#73 0x00007f136cab8d18 in QCoreApplication::notifyInternal2 (receiver=0x5583f5dabb10, event=0x7ffd61143630) at kernel/qcoreapplication.cpp:1060
#74 0x00007f136b2e3bdc in QQuickWidget::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#75 0x00007f136db839c8 in QWidget::event (this=0x5583f5ce4200, event=0x7ffd61143c80) at kernel/qwidget.cpp:9322
#76 0x00007f136b2e3dbb in QQuickWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#77 0x00007f136db4365c in QApplicationPrivate::notify_helper (this=this@entry=0x5583f5a278c0, receiver=receiver@entry=0x5583f5ce4200, e=e@entry=0x7ffd61143c80) at kernel/qapplication.cpp:3736
#78 0x00007f136db4ba58 in QApplication::notify (this=<optimized out>, receiver=0x5583f5ce4200, e=0x7ffd61143c80) at kernel/qapplication.cpp:3197
#79 0x00007f136cab8d18 in QCoreApplication::notifyInternal2 (receiver=0x5583f5ce4200, event=0x7ffd61143c80) at kernel/qcoreapplication.cpp:1060
#80 0x00007f136cab8efe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x5583f5ce4200, event=event@entry=0x7ffd61143c80) at kernel/qcoreapplication.cpp:1462
#81 0x00007f136db4a05f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x5583f5ce4200, event=event@entry=0x7ffd61143c80, alienWidget=0x5583f5ce4200, nativeWidget=0x5583f5bb7a00, buttonDown=buttonDown@entry=0x7f136e2468d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2683
#82 0x00007f136db9e8a1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x5583f5c3dde0, event=event@entry=0x7ffd61144110) at kernel/qwidgetwindow.cpp:662
#83 0x00007f136dba16fa in QWidgetWindow::event (this=0x5583f5c3dde0, event=0x7ffd61144110) at kernel/qwidgetwindow.cpp:281
#84 0x00007f136db4365c in QApplicationPrivate::notify_helper (this=this@entry=0x5583f5a278c0, receiver=receiver@entry=0x5583f5c3dde0, e=e@entry=0x7ffd61144110) at kernel/qapplication.cpp:3736
#85 0x00007f136db4ab90 in QApplication::notify (this=0x7ffd61144700, receiver=0x5583f5c3dde0, e=0x7ffd61144110) at kernel/qapplication.cpp:3483
#86 0x00007f136cab8d18 in QCoreApplication::notifyInternal2 (receiver=0x5583f5c3dde0, event=0x7ffd61144110) at kernel/qcoreapplication.cpp:1060
#87 0x00007f136cab8efe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x5583f5c3dde0, event=event@entry=0x7ffd61144110) at kernel/qcoreapplication.cpp:1462
#88 0x00007f136d3111fb in QGuiApplicationPrivate::processMouseEvent (e=e@entry=0x7ffd61144260) at kernel/qguiapplication.cpp:2102
#89 0x00007f136d311c44 in QGuiApplicationPrivate::processTabletEvent (e=0x5583f73597a0) at kernel/qguiapplication.cpp:2550
#90 0x00007f136d312315 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5583f73597a0) at kernel/qguiapplication.cpp:1905
#91 0x00007f136d2eab4b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#92 0x00007f135fbca59a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#93 0x00007f1365233317 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#94 0x00007f1365233550 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#95 0x00007f13652335dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#96 0x00007f136cb15daf in QEventDispatcherGlib::processEvents (this=0x5583f5b66be0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#97 0x00007f136cab703a in QEventLoop::exec (this=this@entry=0x7ffd61144620, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#98 0x00007f136cac0170 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1363
#99 0x00005583f3b00218 in ?? ()
#100 0x00007f136c0dfb97 in __libc_start_main (main=0x5583f3affe30, argc=1, argv=0x7ffd61144848, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd61144838) at ../csu/libc-start.c:310
#101 0x00005583f3b0029a in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 408325.

Possible duplicates by query: bug 408839, bug 408815, bug 408794, bug 408745, bug 408627.

Reported using DrKonqi