Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-19-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
Plasma crashes sometimes when removing laptop from docking station.
Laptop: Dell Latitude E6440 + Dell docking station + 2 external screens (DVI)
System: Kubuntu 15.10, clean install from iso image, updated

To reproduce (not always reproducable):
- attach laptop to docking station
- wait for KDE to update screens
- remove laptop form docking station

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f72a2a67800 (LWP 1139))]

Thread 21 (Thread 0x7f728f3b0700 (LWP 1140)):
#0  0x00007f729d20c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f72a1253bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f72a125574f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7291f45a39 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f728f3b0700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f728cb77700 (LWP 1177)):
#0  0x00007f729d20849d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7299ffc4e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7299fb8cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7299fb9190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f729db3629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f729d8fa3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f72a0122f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f729c9ee6aa in start_thread (arg=0x7f728cb77700) at pthread_create.c:333
#11 0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f727bd61700 (LWP 1180)):
#0  0x00007f729d1dbc4d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f729d20ee84 in usleep (useconds=<optimized out>) at ../sysdeps/unix/sysv/linux/usleep.c:32
#2  0x00007f727f645d00 in ?? () from /usr/lib/dri/fglrx_dri.so
#3  0x00007f727ed46332 in ?? () from /usr/lib/dri/fglrx_dri.so
#4  0x00007f727ed46385 in ?? () from /usr/lib/dri/fglrx_dri.so
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f727bd61700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f727a547700 (LWP 1181)):
#0  0x00007f7299fb8a43 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7299fb9167 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f729db3629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729d8fa3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f72a0122f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f729c9ee6aa in start_thread (arg=0x7f727a547700) at pthread_create.c:333
#9  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f726bc92700 (LWP 1195)):
#0  0x00007f729d20c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7299fb91ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f729db3629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729d8fa3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f72a0122f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f729c9ee6aa in start_thread (arg=0x7f726bc92700) at pthread_create.c:333
#9  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f726a44e700 (LWP 1196)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f72a24ae114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f72a24ae159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f729c9ee6aa in start_thread (arg=0x7f726a44e700) at pthread_create.c:333
#4  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f71e2c47700 (LWP 1198)):
#0  0x00007ffd029d8b0b in clock_gettime ()
#1  0x00007f729d22638d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f729d9b03a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f729db33d29 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f729db34295 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729db3567e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f7299fb877d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7299fb911b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f729db3629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f729d8fa3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f72a0a9eef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f729c9ee6aa in start_thread (arg=0x7f71e2c47700) at pthread_create.c:333
#15 0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f71da7db700 (LWP 1336)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71da7db700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f71d8dc3700 (LWP 1337)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71d8dc3700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f71d2fff700 (LWP 1338)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71d2fff700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f71c0ed3700 (LWP 1347)):
#0  0x00007f729d20c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7299fb91ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f729db3629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729d8fa3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f71c316a8f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f729c9ee6aa in start_thread (arg=0x7f71c0ed3700) at pthread_create.c:333
#9  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f71b87b0700 (LWP 1442)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71b87b0700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f71b6baf700 (LWP 1468)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71b6baf700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f71b52ae700 (LWP 1469)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71b52ae700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f71a6fff700 (LWP 2029)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71a6fff700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f71a57fe700 (LWP 2053)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71a57fe700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f71a4d71700 (LWP 2539)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71a4d71700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f719dc7f700 (LWP 2964)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f719dc7f700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f7193fff700 (LWP 3224)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f7193fff700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f71925fe700 (LWP 3225)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f729d90055b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f72a0b11b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f72a0b123c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f729d8ff2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f729c9ee6aa in start_thread (arg=0x7f71925fe700) at pthread_create.c:333
#6  0x00007f729d217eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f72a2a67800 (LWP 1139)):
[KCrash Handler]
#6  KXErrorHandler::handle (this=0x91, dpy=0x253b820, e=0x7ffd028fb700) at ../../../../src/platforms/xcb/kxerrorhandler.cpp:109
#7  0x00007f728cd8e52e in KXErrorHandler::handler_wrapper (dpy=<optimized out>, e=<optimized out>) at ../../../../src/platforms/xcb/kxerrorhandler.cpp:102
#8  0x00007f72a14aac4d in _XError (dpy=dpy@entry=0x253b820, rep=rep@entry=0x7f7288006990) at ../../src/XlibInt.c:1429
#9  0x00007f72a14a7ad7 in handle_error (dpy=dpy@entry=0x253b820, err=0x7f7288006990, in_XReply=in_XReply@entry=1) at ../../src/xcb_io.c:213
#10 0x00007f72a14a8c58 in _XReply (dpy=dpy@entry=0x253b820, rep=rep@entry=0x7ffd028fb8d0, extra=extra@entry=0, discard=discard@entry=0) at ../../src/xcb_io.c:699
#11 0x00007f7291b0cf32 in XIQueryDevice (dpy=0x253b820, deviceid=17, ndevices_return=0x7ffd028fb97c) at ../../src/XIQueryDevice.c:60
#12 0x00007f7291f6703e in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#13 0x00007f7291f687b6 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#14 0x00007f7291f68e80 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#15 0x00007f7291f691bf in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#16 0x00007f7291f47e37 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#17 0x00007f7291f483b3 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#18 0x00007f729db10651 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f729e5bcb8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f729e5c2230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f729dadef1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f729dae1057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f729db35e73 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f7299fb8ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f7299fb9250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f7299fb92fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f729db3627f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f729dadc75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f729dae42cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00000000004322c3 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 355016, bug 354118, bug 353831, bug 352531, bug 352095.

Reported using DrKonqi