https://bugs.kde.org/show_bug.cgi?id=450265
Bug ID: 450265
Summary: System Settings crashes when trying to change
monitor's frequency
Product: systemsettings
Version: 5.24.0
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: za...@lunar.sk
Target Milestone: ---
Application: systemsettings (5.24.0)
Qt Version: 5.15.2
Frameworks Version: 5.90.0
Operating System: Linux 5.16.8-arch1-1 x86_64
Windowing System: X11
Distribution: "Arch Linux"
DrKonqi: 5.24.0 [KCrashBackend]
-- Information about the crash:
- What I was doing when the application crashed:
Changed the frequency of one of my monitor.
I have two monitors (same) and one was turned off (by using meta+p popup).
Judging on backtrace (this=this@entry=0x0) this looks like null pointer
dereference and hopefully shouldn't be hard to fix.
The reporter is unsure if this crash is reproducible.
-- Backtrace:
Application: Systémové nastavenia (systemsettings), signal: Segmentation fault
[KCrash Handler]
#4 KScreen::Mode::size (this=this@entry=0x0) at
/usr/src/debug/libkscreen-5.24.0/src/mode.cpp:89
#5 0x00007f59dd537faa in operator() (mode=..., __closure=<optimized out>) at
/usr/src/debug/kscreen-5.24.0/kcm/output_model.cpp:440
#6 __gnu_cxx::__ops::_Iter_pred<OutputModel::setRefreshRate(int,
int)::<lambda(const ModePtr&)> >::operator()<QMap<QString,
QSharedPointer<KScreen::Mode> >::const_iterator> (__it=..., this=<optimized
out>) at /usr/include/c++/11.1.0/bits/predefined_ops.h:318
#7 std::__find_if<QMap<QString, QSharedPointer<KScreen::Mode>
>::const_iterator,
__gnu_cxx::__ops::_Iter_pred<OutputModel::setRefreshRate(int,
int)::<lambda(const ModePtr&)> > > (__pred=..., __last=..., __first=...) at
/usr/include/c++/11.1.0/bits/stl_algobase.h:2052
#8 std::__find_if<QMap<QString, QSharedPointer<KScreen::Mode>
>::const_iterator,
__gnu_cxx::__ops::_Iter_pred<OutputModel::setRefreshRate(int,
int)::<lambda(const ModePtr&)> > > (__pred=..., __last=..., __first=...) at
/usr/include/c++/11.1.0/bits/stl_algobase.h:2114
#9 std::find_if<QMap<QString, QSharedPointer<KScreen::Mode> >::const_iterator,
OutputModel::setRefreshRate(int, int)::<lambda(const ModePtr&)> > (__pred=...,
__last=..., __first=...) at /usr/include/c++/11.1.0/bits/stl_algo.h:3910
#10 OutputModel::setRefreshRate (refIndex=<optimized out>, outputIndex=0,
this=0x557d6111c860) at /usr/src/debug/kscreen-5.24.0/kcm/output_model.cpp:437
#11 OutputModel::setData (this=0x557d6111c860, index=..., value=...,
role=<optimized out>) at /usr/src/debug/kscreen-5.24.0/kcm/output_model.cpp:149
#12 0x00007f5a51ec7626 in QQmlDMAbstractItemModelData::setValue
(this=<optimized out>, role=270, value=...) at
/usr/src/debug/qtdeclarative/src/qmlmodels/qqmladaptormodel.cpp:421
#13 0x00007f5a51ec1c4d in QQmlDMCachedModelData::metaCall (this=0x557d606304c0,
call=<optimized out>, id=<optimized out>, arguments=<optimized out>) at
/usr/src/debug/qtdeclarative/src/qmlmodels/qqmladaptormodel.cpp:298
#14 0x00007f5a5362f706 in QQmlPropertyData::writeProperty (this=<optimized
out>, target=<optimized out>, value=<optimized out>, flags=...) at
../../include/QtQml/5.15.2/QtQml/private/../../../../../../qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:379
#15 0x00007f5a5356e75f in QV4::QObjectWrapper::setProperty
(engine=0x557d60fd21b0, object=0x557d606304c0, property=0x557d6105b058,
value=...) at /usr/include/qt/QtCore/qflags.h:120
#16 0x00007f5a5356eec5 in QV4::QObjectWrapper::setQmlProperty (value=...,
revisionMode=QV4::QObjectWrapper::IgnoreRevision, name=0x4,
object=0x557d606304c0, qmlContext=0x557d60c8e740, engine=0x557d60fd21b0) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:435
#17 QV4::QObjectWrapper::setQmlProperty (engine=engine@entry=0x557d60fd21b0,
qmlContext=qmlContext@entry=0x557d60c8e740, object=0x557d606304c0,
name=name@entry=0x7f59dd016590,
revisionMode=revisionMode@entry=QV4::QObjectWrapper::IgnoreRevision, value=...)
at /usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:418
#18 0x00007f5a5356f061 in QV4::QObjectWrapper::virtualPut (m=0x7f59dd016550,
id=..., value=..., receiver=0x7f59dd016550) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:722
#19 0x00007f5a535488cf in QV4::Object::put (receiver=<optimized out>, v=...,
id=..., this=<optimized out>, this=<optimized out>, id=..., v=...,
receiver=<optimized out>) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4object_p.h:324
#20 QV4::Object::virtualResolveLookupSetter (object=0x7f59dd016550,
engine=0x557d60fd21b0, lookup=0x557d61a345c0, value=...) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4object.cpp:804
#21 0x00007f5a53587abc in QV4::Moth::VME::interpret (frame=0x7ffe52bca510,
engine=0x557d60fd21b0, code=0x7f59dcdac3c1 "\016\002") at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:351
#22 0x00007f5a5358b765 in QV4::Moth::VME::exec (frame=<optimized out>,
engine=<optimized out>) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:463
#23 0x00007f5a5352d46e in QV4::Function::call (this=<optimized out>,
thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>,
context=<optimized out>) at
/usr/src/debug/qtdeclarative/src/qml/jsruntime/qv4function.cpp:69
#24 0x00007f5a5368b862 in QQmlJavaScriptExpression::evaluate
(this=0x557d61d7add0, callData=0x7f59dd0164d8, isUndefined=0x0) at
/usr/src/debug/qtdeclarative/src/qml/qml/qqmljavascriptexpression.cpp:212
#25 0x00007f5a53645b93 in QQmlBoundSignalExpression::evaluate (this=<optimized
out>, a=<optimized out>) at
/usr/src/debug/qtdeclarative/src/qml/qml/qqmlboundsignal.cpp:224
#26 0x00007f5a5364764c in QQmlBoundSignal_callback (a=0x7ffe52bcc1b0,
e=0x557d61d7a280) at
../../include/QtQml/5.15.2/QtQml/private/../../../../../../qtdeclarative/src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#27 QQmlBoundSignal_callback (e=0x557d61d7a280, a=0x7ffe52bcc1b0) at
/usr/src/debug/qtdeclarative/src/qml/qml/qqmlboundsignal.cpp:341
#28 0x00007f5a5366b425 in QQmlNotifier::emitNotify (endpoint=<optimized out>,
a=0x7ffe52bcc1b0) at
/usr/src/debug/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:104
#29 0x00007f5a54af08ee in doActivate<false> (sender=0x557d61cadef0,
signal_index=61, argv=0x7ffe52bcc1b0) at kernel/qobject.cpp:3778
#30 0x00007f5a4e136343 in QQuickComboBox::activated (this=<optimized out>,
_t1=<optimized out>) at .moc/moc_qquickcombobox_p.cpp:759
#31 0x00007f5a4e0b851a in QQuickComboBoxPrivate::hidePopup
(this=0x557d61930fd0, accept=<optimized out>) at
/usr/src/debug/qtquickcontrols2/src/quicktemplates2/qquickcombobox.cpp:323
#32 0x00007f5a54af0d93 in QtPrivate::QSlotObjectBase::call (a=<optimized out>,
r=<optimized out>, this=<optimized out>, this=<optimized out>, r=<optimized
out>, a=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#33 doActivate<false> (sender=0x557d605d43c0, signal_index=64,
argv=0x7ffe52bcc280) at kernel/qobject.cpp:3886
#34 0x00007f5a4e0ac91a in QQuickAbstractButtonPrivate::handleRelease
(this=0x557d62356f80, point=...) at
/usr/src/debug/qtquickcontrols2/src/quicktemplates2/qquickabstractbutton.cpp:182
#35 0x00007f5a4e0c7a69 in QQuickControl::mouseReleaseEvent (this=<optimized
out>, event=0x7ffe52bcc670) at
/usr/src/debug/qtquickcontrols2/src/quicktemplates2/qquickcontrol.cpp:2151
#36 0x00007f5a53a419db in QQuickItem::event (this=0x557d605d43c0,
ev=0x7ffe52bcc670) at
/usr/src/debug/qtdeclarative/src/quick/items/qquickitem.cpp:8200
#37 0x00007f5a556341a6 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x557d605d43c0, e=0x7ffe52bcc670) at
kernel/qapplication.cpp:3632
#38 0x00007f5a54ac016a in QCoreApplication::notifyInternal2
(receiver=0x557d605d43c0, event=0x7ffe52bcc670) at
kernel/qcoreapplication.cpp:1064
#39 0x00007f5a53a500f1 in QQuickWindowPrivate::deliverMouseEvent
(this=this@entry=0x557d60781d20, pointerEvent=0x7f5a4800b3b0) at
/usr/src/debug/qtdeclarative/src/quick/items/qquickwindow.cpp:2019
#40 0x00007f5a53a50aa4 in QQuickWindowPrivate::deliverPointerEvent
(this=0x557d60781d20, event=0x7f5a4800b3b0) at
/usr/src/debug/qtdeclarative/src/quick/items/qquickwindow.cpp:2611
#41 0x00007f5a54fa026d in QWindow::event (this=0x557d610c0e40, ev=<optimized
out>) at kernel/qwindow.cpp:2438
#42 0x00007f5a556341a6 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x557d610c0e40, e=0x7ffe52bcc670) at
kernel/qapplication.cpp:3632
#43 0x00007f5a54ac016a in QCoreApplication::notifyInternal2
(receiver=0x557d610c0e40, event=0x7ffe52bcc670) at
kernel/qcoreapplication.cpp:1064
#44 0x00007f5a52717e1e in QQuickWidget::mouseReleaseEvent (this=<optimized
out>, e=0x7ffe52bccbd0) at
/usr/src/debug/qtdeclarative/src/quickwidgets/qquickwidget.cpp:1416
#45 0x00007f5a5566a616 in QWidget::event (this=0x557d60fff2c0,
event=0x7ffe52bccbd0) at kernel/qwidget.cpp:8646
#46 0x00007f5a556341a6 in QApplicationPrivate::notify_helper
(this=this@entry=0x557d5f9304f0, receiver=receiver@entry=0x557d60fff2c0,
e=e@entry=0x7ffe52bccbd0) at kernel/qapplication.cpp:3632
#47 0x00007f5a55638fd7 in QApplication::notify (this=0x7ffe52bcc860,
receiver=0x557d60fff2c0, e=0x7ffe52bccbd0) at kernel/qapplication.cpp:3076
#48 0x00007f5a54ac016a in QCoreApplication::notifyInternal2
(receiver=0x557d60fff2c0, event=0x7ffe52bccbd0) at
kernel/qcoreapplication.cpp:1064
#49 0x00007f5a5563799f in QApplicationPrivate::sendMouseEvent
(receiver=0x557d60fff2c0, event=0x7ffe52bccbd0, alienWidget=0x557d60fff2c0,
nativeWidget=0x557d5fa98210, buttonDown=<optimized out>, lastMouseReceiver=...,
spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614
#50 0x00007f5a556887d7 in QWidgetWindow::handleMouseEvent (this=0x557d5ff03600,
event=0x7ffe52bccf40) at kernel/qwidgetwindow.cpp:683
#51 0x00007f5a5568a37c in QWidgetWindow::event (this=0x557d5ff03600,
event=0x7ffe52bccf40) at kernel/qwidgetwindow.cpp:300
#52 0x00007f5a556341a6 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x557d5ff03600, e=0x7ffe52bccf40) at
kernel/qapplication.cpp:3632
#53 0x00007f5a54ac016a in QCoreApplication::notifyInternal2
(receiver=0x557d5ff03600, event=0x7ffe52bccf40) at
kernel/qcoreapplication.cpp:1064
#54 0x00007f5a54f90f60 in QGuiApplicationPrivate::processMouseEvent
(e=0x557d6202b2b0) at kernel/qguiapplication.cpp:2282
#55 0x00007f5a54f7c5e5 in QWindowSystemInterface::sendWindowSystemEvents
(flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1169
#56 0x00007f5a4ee3ad80 in xcbSourceDispatch (source=<optimized out>) at
/usr/src/debug/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:105
#57 0x00007f5a52773f13 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#58 0x00007f5a527ca0d9 in ?? () from /usr/lib/libglib-2.0.so.0
#59 0x00007f5a52771485 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#60 0x00007f5a54b0b44a in QEventDispatcherGlib::processEvents
(this=0x557d5fa061b0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#61 0x00007f5a54ab844b in QEventLoop::exec (this=0x7ffe52bcd2d0, flags=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#62 0x00007f5a54ac3b97 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#63 0x00007f5a54f8c162 in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1867
#64 0x00007f5a5563252a in QApplication::exec () at kernel/qapplication.cpp:2824
#65 0x0000557d5f2eebfa in main (argc=<optimized out>, argv=0x7ffe52bcd400) at
/usr/src/debug/systemsettings-5.24.0/app/main.cpp:183
[Inferior 1 (process 452949) detached]
Possible duplicates by query: bug 449953, bug 449869, bug 449589, bug 448104,
bug 447910.
Reported using DrKonqi
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