[kde] [Bug 347699] New: System Settings crashed on clicking back from display & monitor settings menu

[Saurabh Minni]

https://bugs.kde.org/show_bug.cgi?id=347699

            Bug ID: 347699
           Summary: System Settings crashed on clicking back from display
                    & monitor settings menu
           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 the100rabh.otherinbox.com

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-16-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Opened display and settings
Changed some settings for monitor
Clicked Back without saving

-- 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 0x7fb2fe432780 (LWP 1755))]

Thread 2 (Thread 0x7fb2ebc3d700 (LWP 1757)):
#0  0x00007fb2fabaa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fb2f8ec4b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb2f8ec664f in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb2eea05099 in QXcbEventReader::run (this=0x16b7d00) at
qxcbconnection.cpp:1105
#4  0x00007fb2fb22bb0e in QThreadPrivate::start (arg=0x16b7d00) at
thread/qthread_unix.cpp:337
#5  0x00007fb2f7dde6aa in start_thread (arg=0x7fb2ebc3d700) at
pthread_create.c:333
#6  0x00007fb2fabb5eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb2fe432780 (LWP 1755)):
[KCrash Handler]
#6  0x00007fb2f9cc7de4 in QQuickWindow::maybeUpdate() () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fb2f9cb3e28 in
QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fb2f9cbe045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fb2fb49b73a in QObject::event (this=0x1e7e0d0, e=<optimized out>) at
kernel/qobject.cpp:1245
#10 0x00007fb2f9cbcb6b in QQuickItem::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fb2fc255b2c in QApplicationPrivate::notify_helper (this=0x168c550,
receiver=0x1e7e0d0, e=0x7fb2c8104e50) at kernel/qapplication.cpp:3720
#12 0x00007fb2fc25b000 in QApplication::notify (this=0x7fffff8a1920,
receiver=0x1e7e0d0, e=0x7fb2c8104e50) at kernel/qapplication.cpp:3503
#13 0x00007fb2fb469c2b in QCoreApplication::notifyInternal
(this=0x7fffff8a1920, receiver=0x1e7e0d0, event=event at entry=0x7fb2c8104e50) at
kernel/qcoreapplication.cpp:935
#14 0x00007fb2fb46bc9b in sendEvent (event=0x7fb2c8104e50, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x168b770) at
kernel/qcoreapplication.cpp:1552
#16 0x00007fb2fb46c298 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1410
#17 0x00007fb2fb4c2843 in postEventSourceDispatch (s=0x16fe1a0) at
kernel/qeventdispatcher_glib.cpp:271
#18 0x00007fb2f78bfc3d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fb2f78bff20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fb2f78bffcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fb2fb4c2c57 in QEventDispatcherGlib::processEvents (this=0x16f3be0,
flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007fb2fb4673e2 in QEventLoop::exec (this=this at entry=0x7fffff8a1800,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#23 0x00007fb2fb46f02c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1188
#24 0x00007fb2fbc9031c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1510
#25 0x00007fb2fc2517a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#26 0x000000000040eebc in main (argc=1, argv=<optimized out>) at
../../app/main.cpp:54

Reported using DrKonqi

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