[kde] [Bug 347627] New: Crash after modifying display configuration

Jake Magee kde at jakemagee.com
Tue May 12 19:17:08 BST 2015 

https://bugs.kde.org/show_bug.cgi?id=347627

            Bug ID: 347627
           Summary: Crash after modifying display configuration
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: kde at jakemagee.com

Application: kcmshell5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:

I swapped the orientation of the laptop and external monitors and then moved
the display configuration from the external monitor to the laptop screen.

-- Backtrace:
Application: KDE Control Module (kcmshell5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffb4f7e4800 (LWP 14515))]

Thread 3 (Thread 0x7ffb3b1c8700 (LWP 14516)):
#0  0x00007ffb4f2c58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffb479b1b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffb479b364f in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffb3d0ec099 in QXcbEventReader::run (this=0xa579c0) at
qxcbconnection.cpp:1105
#4  0x00007ffb4d348b0e in QThreadPrivate::start (arg=0xa579c0) at
thread/qthread_unix.cpp:337
#5  0x00007ffb4cd7f6aa in start_thread (arg=0x7ffb3b1c8700) at
pthread_create.c:333
#6  0x00007ffb4f2d0eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ffb2bfff700 (LWP 14520)):
#0  0x00007ffb4f2c58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffb4728debc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb4728dfcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb4d5dfc6c in QEventDispatcherGlib::processEvents
(this=0x7ffb240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007ffb4d5843e2 in QEventLoop::exec (this=this at entry=0x7ffb2bffeda0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffb4d343b44 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#6  0x00007ffb4c789f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ffb4d348b0e in QThreadPrivate::start (arg=0x108d8d0) at
thread/qthread_unix.cpp:337
#8  0x00007ffb4cd7f6aa in start_thread (arg=0x7ffb2bfff700) at
pthread_create.c:333
#9  0x00007ffb4f2d0eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffb4f7e4800 (LWP 14515)):
[KCrash Handler]
#6  0x00007ffb3914adf4 in isEmpty (this=0x30) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:791
#7  KScreen::ConfigOperation::hasError (this=this at entry=0x1363460) at
../../src/configoperation.cpp:76
#8  0x00007ffb3914b026 in KScreen::ConfigOperation::exec (this=0x1363460) at
../../src/configoperation.cpp:109
#9  0x00007ffb3937e33c in KCMKScreen::save (this=0x1363460) at
../../../kcm/src/kcm_kscreen.cpp:144
#10 0x00007ffb4efa9077 in KCModuleProxy::save (this=this at entry=0xb15db0) at
../../src/kcmoduleproxy.cpp:272
#11 0x00007ffb4efa62f0 in KCMultiDialogPrivate::apply (this=<optimized out>) at
../../src/kcmultidialog.cpp:323
#12 0x00007ffb4efa6695 in KCMultiDialog::qt_static_metacall (_o=0x1363460,
_c=QMetaObject::ReadProperty, _id=1, _a=0x0) at ./moc_kcmultidialog.cpp:112
#13 0x00007ffb4d5b79c9 in QMetaObject::activate (sender=sender at entry=0xb22450,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=2,
argv=argv at entry=0x7ffd27059730) at kernel/qobject.cpp:3716
#14 0x00007ffb4d5b8057 in QMetaObject::activate (sender=sender at entry=0xb22450,
m=m at entry=0x7ffb4de7da60 <QAbstractButton::staticMetaObject>,
local_signal_index=local_signal_index at entry=2, argv=argv at entry=0x7ffd27059730)
at kernel/qobject.cpp:3582
#15 0x00007ffb4dcf2012 in QAbstractButton::clicked (this=this at entry=0xb22450,
_t1=false) at .moc/moc_qabstractbutton.cpp:298
#16 0x00007ffb4da3f675 in QAbstractButtonPrivate::emitClicked (this=0xb21820)
at widgets/qabstractbutton.cpp:534
#17 0x00007ffb4da40299 in QAbstractButtonPrivate::click (this=0xb21820) at
widgets/qabstractbutton.cpp:527
#18 0x00007ffb4da40454 in QAbstractButton::mouseReleaseEvent (this=0xb22450,
e=0x7ffd27059bf0) at widgets/qabstractbutton.cpp:1132
#19 0x00007ffb4d9871e8 in QWidget::event (this=0xb22450, event=0x7ffd27059bf0)
at kernel/qwidget.cpp:9022
#20 0x00007ffb4d943b2c in QApplicationPrivate::notify_helper (this=0xa41e70,
receiver=0xb22450, e=0x7ffd27059bf0) at kernel/qapplication.cpp:3720
#21 0x00007ffb4d9498eb in QApplication::notify (this=0x7ffd27059930,
receiver=0x7ffd27059950, e=0x7ffd27059bf0) at kernel/qapplication.cpp:3280
#22 0x00007ffb4d586c2b in QCoreApplication::notifyInternal
(this=0x7ffd2705a520, receiver=receiver at entry=0xb22450,
event=event at entry=0x7ffd27059bf0) at kernel/qcoreapplication.cpp:935
#23 0x00007ffb4d9483da in sendSpontaneousEvent (event=0x7ffd27059bf0,
receiver=0xb22450) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QApplicationPrivate::sendMouseEvent (receiver=0xb22450,
event=0x7ffd27059bf0, alienWidget=0xb22450, nativeWidget=0xb02e80,
buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at
kernel/qapplication.cpp:2751
#25 0x00007ffb4d99fcc0 in QWidgetWindow::handleMouseEvent (this=0xbab5b0,
event=0x7ffd2705a000) at kernel/qwidgetwindow.cpp:543
#26 0x00007ffb4d9a1e33 in QWidgetWindow::event (this=0xbab5b0,
event=0x7ffd2705a000) at kernel/qwidgetwindow.cpp:210
#27 0x00007ffb4d943b2c in QApplicationPrivate::notify_helper (this=0xa41e70,
receiver=0xbab5b0, e=0x7ffd2705a000) at kernel/qapplication.cpp:3720
#28 0x00007ffb4d949000 in QApplication::notify (this=0x7ffd2705a520,
receiver=0xbab5b0, e=0x7ffd2705a000) at kernel/qapplication.cpp:3503
#29 0x00007ffb4d586c2b in QCoreApplication::notifyInternal
(this=0x7ffd2705a520, receiver=0xbab5b0, event=0x7ffd2705a000) at
kernel/qcoreapplication.cpp:935
#30 0x00007ffb4ae65f82 in sendSpontaneousEvent (event=<optimized out>,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QGuiApplicationPrivate::processMouseEvent (e=0x2a12850) at
kernel/qguiapplication.cpp:1774
#32 0x00007ffb4ae67b45 in QGuiApplicationPrivate::processWindowSystemEvent
(e=e at entry=0x2a12850) at kernel/qguiapplication.cpp:1576
#33 0x00007ffb4ae4c34f in QWindowSystemInterface::sendWindowSystemEvents
(flags=...) at kernel/qwindowsysteminterface.cpp:572
#34 0x00007ffb3d116590 in userEventSourceDispatch (source=<optimized out>) at
eventdispatchers/qeventdispatcher_glib.cpp:70
#35 0x00007ffb4728dc3d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007ffb4728df20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007ffb4728dfcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007ffb4d5dfc57 in QEventDispatcherGlib::processEvents (this=0xa80430,
flags=...) at kernel/qeventdispatcher_glib.cpp:418
#39 0x00007ffb4d5843e2 in QEventLoop::exec (this=this at entry=0x7ffd2705a3b0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#40 0x00007ffb4db454b5 in QDialog::exec (this=0xb02e80) at
dialogs/qdialog.cpp:541
#41 0x00007ffb4f59c9cb in kdemain (_argc=<optimized out>, _argv=<optimized
out>) at ../../kcmshell/main.cpp:307
#42 0x00007ffb4f1eaa40 in __libc_start_main (main=0x400730 <main(int, char**)>,
argc=2, argv=0x7ffd2705a668, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd2705a658) at libc-start.c:289
#43 0x0000000000400769 in _start ()

Reported using DrKonqi

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