(In reply to comment #0)
> Application: gwenview (4.11.2)
> KDE Platform Version: 4.11.2
> Qt Version: 4.8.4
> Operating System: Linux 3.11.0-13-generic x86_64
> Distribution: Ubuntu 13.10
> 
> -- Information about the crash:
> - What I was doing when the application crashed:
> I opened a picture file using Gwenview and went to Advanced Slideshow
> (Alt+Shift+F9) and selected "Ken Burns" as the transition effect. Upon
> clicking "Start Slideshow", Gwenview crashed. I am running Kubuntu 13.10
> 64-bit on a Thinkpad x61 laptop.
> 
> The crash can be reproduced every time.
> 
> -- Backtrace:
> Application: Gwenview (gwenview), signal: Segmentation fault
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [Current thread is 1 (Thread 0x7f12529ef7c0 (LWP 6094))]
> 
> Thread 4 (Thread 0x7f123b7b6700 (LWP 6098)):
> #0  0x00007f124b4250e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #1  0x00007f124b4253c9 in g_mutex_unlock () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #2  0x00007f124b3e5699 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #3  0x00007f124b3e57ac in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #4  0x00007f125182aa76 in QEventDispatcherGlib::processEvents
> (this=0x7f122c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
> #5  0x00007f12517fc5ef in QEventLoop::processEvents
> (this=this@entry=0x7f123b7b5d70, flags=...) at kernel/qeventloop.cpp:149
> #6  0x00007f12517fc8e5 in QEventLoop::exec (this=this@entry=0x7f123b7b5d70,
> flags=...) at kernel/qeventloop.cpp:204
> #7  0x00007f12516fb88f in QThread::exec (this=this@entry=0x13f82b0) at
> thread/qthread.cpp:542
> #8  0x00007f12517ddd13 in QInotifyFileSystemWatcherEngine::run
> (this=0x13f82b0) at io/qfilesystemwatcher_inotify.cpp:265
> #9  0x00007f12516fdf2f in QThreadPrivate::start (arg=0x13f82b0) at
> thread/qthread_unix.cpp:338
> #10 0x00007f124b8a9f6e in start_thread (arg=0x7f123b7b6700) at
> pthread_create.c:311
> #11 0x00007f124f1b79cd in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
> 
> Thread 3 (Thread 0x7f123a891700 (LWP 6100)):
> #0  0x00007f124f1aaf7d in poll () at ../sysdeps/unix/syscall-template.S:81
> #1  0x00007f124b3e56a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #2  0x00007f124b3e57ac in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #3  0x00007f125182aa76 in QEventDispatcherGlib::processEvents
> (this=0x7f12300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
> #4  0x00007f12517fc5ef in QEventLoop::processEvents
> (this=this@entry=0x7f123a890d70, flags=...) at kernel/qeventloop.cpp:149
> #5  0x00007f12517fc8e5 in QEventLoop::exec (this=this@entry=0x7f123a890d70,
> flags=...) at kernel/qeventloop.cpp:204
> #6  0x00007f12516fb88f in QThread::exec (this=this@entry=0x16f16e0) at
> thread/qthread.cpp:542
> #7  0x00007f12517ddd13 in QInotifyFileSystemWatcherEngine::run
> (this=0x16f16e0) at io/qfilesystemwatcher_inotify.cpp:265
> #8  0x00007f12516fdf2f in QThreadPrivate::start (arg=0x16f16e0) at
> thread/qthread_unix.cpp:338
> #9  0x00007f124b8a9f6e in start_thread (arg=0x7f123a891700) at
> pthread_create.c:311
> #10 0x00007f124f1b79cd in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
> 
> Thread 2 (Thread 0x7f121a98a700 (LWP 6107)):
> #0  pthread_cond_wait@@GLIBC_2.3.2 () at
> ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
> #1  0x00007f12516fe406 in wait (time=18446744073709551615, this=0x2396af0)
> at thread/qwaitcondition_unix.cpp:86
> #2  QWaitCondition::wait (this=this@entry=0x2398390,
> mutex=mutex@entry=0x2398388, time=time@entry=18446744073709551615) at
> thread/qwaitcondition_unix.cpp:158
> #3  0x00007f12381c0c3d in KIPIPlugins::KPRawThumbThread::run
> (this=0x1be7300) at
> /build/buildd/digikam-3.4.0/extra/kipi-plugins/common/libkipiplugins/tools/
> kprawthumbthread.cpp:108
> #4  0x00007f12516fdf2f in QThreadPrivate::start (arg=0x1be7300) at
> thread/qthread_unix.cpp:338
> #5  0x00007f124b8a9f6e in start_thread (arg=0x7f121a98a700) at
> pthread_create.c:311
> #6  0x00007f124f1b79cd in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
> 
> Thread 1 (Thread 0x7f12529ef7c0 (LWP 6094)):
> [KCrash Handler]
> #6  XRRConfigCurrentRate (config=0x0) at ../../src/XrrConfig.c:94
> #7  0x00007f122035420a in
> KIPIAdvancedSlideshowPlugin::ScreenProperties::suggestFrameRate
> (this=<optimized out>) at
> /build/buildd/digikam-3.4.0/extra/kipi-plugins/advancedslideshow/plugin/
> screenproperties.cpp:71
> #8  0x00007f12203534a7 in
> KIPIAdvancedSlideshowPlugin::SlideShowKB::SlideShowKB (this=0x24df8e0,
> fileList=..., commentsList=..., sharedData=<optimized out>) at
> /build/buildd/digikam-3.4.0/extra/kipi-plugins/advancedslideshow/widgets/
> slideshowkb.cpp:201
> #9  0x00007f1220358b74 in
> KIPIAdvancedSlideshowPlugin::Plugin_AdvancedSlideshow::slotSlideShow
> (this=<optimized out>) at
> /build/buildd/digikam-3.4.0/extra/kipi-plugins/advancedslideshow/plugin/
> plugin_advancedslideshow.cpp:267
> #10 0x00007f1251811a58 in QMetaObject::activate (sender=0x23b3160,
> m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at
> kernel/qobject.cpp:3539
> #11 0x00007f1251811a58 in QMetaObject::activate
> (sender=sender@entry=0x23b3160, m=m@entry=0x7f1250f1c420
> <KDialog::staticMetaObject>, local_signal_index=local_signal_index@entry=6,
> argv=argv@entry=0x0) at kernel/qobject.cpp:3539
> #12 0x00007f1250a7f593 in KDialog::user1Clicked (this=this@entry=0x23b3160)
> at ./kdialog.moc:254
> #13 0x00007f1250a7fc34 in KDialog::slotButtonClicked (this=0x23b3160,
> button=4096) at ../../kdeui/dialogs/kdialog.cpp:900
> #14 0x00007f1250a8157f in KDialog::qt_static_metacall (_o=<optimized out>,
> _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at
> ./kdialog.moc:167
> #15 0x00007f1251811a58 in QMetaObject::activate
> (sender=sender@entry=0x2f988d0, m=m@entry=0x7f1251b5dd60
> <QSignalMapper::staticMetaObject>,
> local_signal_index=local_signal_index@entry=0,
> argv=argv@entry=0x7fff5fc33680) at kernel/qobject.cpp:3539
> #16 0x00007f125181913e in QSignalMapper::mapped (this=this@entry=0x2f988d0,
> _t1=4096) at .moc/release-shared/moc_qsignalmapper.cpp:115
> #17 0x00007f1251819246 in QSignalMapper::map (this=0x2f988d0,
> sender=0x2f95d30) at kernel/qsignalmapper.cpp:266
> #18 0x00007f1251811a58 in QMetaObject::activate
> (sender=sender@entry=0x2f95d30, m=m@entry=0x7f12508e62a0
> <QAbstractButton::staticMetaObject>,
> local_signal_index=local_signal_index@entry=2,
> argv=argv@entry=0x7fff5fc337f0) at kernel/qobject.cpp:3539
> #19 0x00007f1250461732 in QAbstractButton::clicked
> (this=this@entry=0x2f95d30, _t1=false) at
> .moc/release-shared/moc_qabstractbutton.cpp:220
> #20 0x00007f12501c4f73 in QAbstractButtonPrivate::emitClicked
> (this=this@entry=0x23a32c0) at widgets/qabstractbutton.cpp:548
> #21 0x00007f12501c60e3 in QAbstractButtonPrivate::click
> (this=this@entry=0x23a32c0) at widgets/qabstractbutton.cpp:541
> #22 0x00007f12501c61cc in QAbstractButton::mouseReleaseEvent
> (this=0x2f95d30, e=0x7fff5fc33ce0) at widgets/qabstractbutton.cpp:1123
> #23 0x00007f124fe6331e in QWidget::event (this=0x2f95d30,
> event=0x7fff5fc33ce0) at kernel/qwidget.cpp:8375
> #24 0x00007f124fe13dfc in QApplicationPrivate::notify_helper
> (this=this@entry=0x1175710, receiver=receiver@entry=0x2f95d30,
> e=e@entry=0x7fff5fc33ce0) at kernel/qapplication.cpp:4567
> #25 0x00007f124fe1a5ad in QApplication::notify
> (this=this@entry=0x7fff5fc344a0, receiver=receiver@entry=0x2f95d30,
> e=e@entry=0x7fff5fc33ce0) at kernel/qapplication.cpp:4110
> #26 0x00007f1250b1da6a in KApplication::notify (this=0x7fff5fc344a0,
> receiver=0x2f95d30, event=0x7fff5fc33ce0) at
> ../../kdeui/kernel/kapplication.cpp:311
> #27 0x00007f12517fd8bd in QCoreApplication::notifyInternal
> (this=0x7fff5fc344a0, receiver=receiver@entry=0x2f95d30,
> event=event@entry=0x7fff5fc33ce0) at kernel/qcoreapplication.cpp:946
> #28 0x00007f124fe19d63 in sendEvent (event=<optimized out>,
> receiver=<optimized out>) at
> ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
> #29 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x2f95d30,
> event=event@entry=0x7fff5fc33ce0, alienWidget=alienWidget@entry=0x2f95d30,
> nativeWidget=nativeWidget@entry=0x23b3160,
> buttonDown=buttonDown@entry=0x7f12508f82f8 <qt_button_down>,
> lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at
> kernel/qapplication.cpp:3178
> #30 0x00007f124fe8e7db in QETWidget::translateMouseEvent
> (this=this@entry=0x23b3160, event=event@entry=0x7fff5fc34060) at
> kernel/qapplication_x11.cpp:4631
> #31 0x00007f124fe8e079 in QApplication::x11ProcessEvent
> (this=0x7fff5fc344a0, event=event@entry=0x7fff5fc34060) at
> kernel/qapplication_x11.cpp:3624
> #32 0x00007f124feb5922 in x11EventSourceDispatch (s=0x1173820, callback=0x0,
> user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
> #33 0x00007f124b3e53b6 in g_main_context_dispatch () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #34 0x00007f124b3e5708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #35 0x00007f124b3e57ac in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #36 0x00007f125182aa55 in QEventDispatcherGlib::processEvents
> (this=0x1137ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
> #37 0x00007f124feb59d6 in QGuiEventDispatcherGlib::processEvents
> (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
> #38 0x00007f12517fc5ef in QEventLoop::processEvents
> (this=this@entry=0x7fff5fc34440, flags=...) at kernel/qeventloop.cpp:149
> #39 0x00007f12517fc8e5 in QEventLoop::exec (this=this@entry=0x7fff5fc34440,
> flags=...) at kernel/qeventloop.cpp:204
> #40 0x00007f1251801e5b in QCoreApplication::exec () at
> kernel/qcoreapplication.cpp:1218
> #41 0x00007f124fe1234c in QApplication::exec () at
> kernel/qapplication.cpp:3828
> #42 0x0000000000427cad in main (argc=<optimized out>, argv=0x7fff5fc345e8)
> at ../../app/main.cpp:139
> 
> The reporter indicates this bug may be a duplicate of or related to bug
> 305433.
> 
> Possible duplicates by query: bug 305433.
> 
> Reported using DrKonqi

I forgot to mention: the crash occurs only when I have an external monitor hooked up and the slideshow is enabled on the external monitor. The crash does not occur when the slideshow is enabled on the main (laptop) monitor.

*** This bug has been marked as a duplicate of bug 305433 ***

Fixed with https://bugs.kde.org/show_bug.cgi?id=305433