Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-27-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
When I unlocked my account after about one hour,, I was informed that plasma has crashed. 

- Custom settings of the application:
I noticed that I had to disconnect and then reconnect my keyboard to be able to enter my password for login. 

I already had this problem several times before, but not every time I unlock.

-- 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 0x7faa8628d800 (LWP 2287))]

Thread 26 (Thread 0x7faa72a6e700 (LWP 2288)):
#0  0x00007faa80a3d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa84a84bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007faa84a8674f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007faa75603a39 in QXcbEventReader::run (this=0x1480550) at qxcbconnection.cpp:1105
#4  0x00007faa811302be in QThreadPrivate::start (arg=0x1480550) at thread/qthread_unix.cpp:337
#5  0x00007faa8021f6aa in start_thread (arg=0x7faa72a6e700) at pthread_create.c:333
#6  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7faa6bfff700 (LWP 2313)):
#0  0x00007faa80a3949d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa7d82d4e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7d7e9cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa7d7ea190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa8136729b in QEventDispatcherGlib::processEvents (this=0x7faa640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7faa6bffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007faa8112b3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007faa83953f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007faa811302be in QThreadPrivate::start (arg=0x154c130) at thread/qthread_unix.cpp:337
#10 0x00007faa8021f6aa in start_thread (arg=0x7faa6bfff700) at pthread_create.c:333
#11 0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7faa5f341700 (LWP 2319)):
#0  0x00007faa80a0cc4d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa80a3fe84 in usleep (useconds=<optimized out>) at ../sysdeps/unix/sysv/linux/usleep.c:32
#2  0x00007faa63645d00 in ?? () from /usr/lib/dri/fglrx_dri.so
#3  0x00007faa62d46332 in ?? () from /usr/lib/dri/fglrx_dri.so
#4  0x00007faa62d46385 in ?? () from /usr/lib/dri/fglrx_dri.so
#5  0x00007faa8021f6aa in start_thread (arg=0x7faa5f341700) at pthread_create.c:333
#6  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7faa5db27700 (LWP 2322)):
#0  0x00007faa80a3d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa7d7ea1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa8136729b in QEventDispatcherGlib::processEvents (this=0x7faa500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7faa5db26da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007faa8112b3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007faa83953f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007faa811302be in QThreadPrivate::start (arg=0x1d51420) at thread/qthread_unix.cpp:337
#8  0x00007faa8021f6aa in start_thread (arg=0x7faa5db27700) at pthread_create.c:333
#9  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7faa5724c700 (LWP 2346)):
#0  0x00007faa80a3949d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa7d82d4e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7d7e9cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa7d7ea190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa8136729b in QEventDispatcherGlib::processEvents (this=0x7faa440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7faa5724bda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007faa8112b3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007faa83953f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007faa811302be in QThreadPrivate::start (arg=0x1b33620) at thread/qthread_unix.cpp:337
#10 0x00007faa8021f6aa in start_thread (arg=0x7faa5724c700) at pthread_create.c:333
#11 0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7faa55a08700 (LWP 2350)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa85cdf114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007faa85cdf159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007faa8021f6aa in start_thread (arg=0x7faa55a08700) at pthread_create.c:333
#4  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7faa4a5dd700 (LWP 2356)):
#0  0x00007faa7d82e884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007faa7d7e9770 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7d7ea11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa8136729b in QEventDispatcherGlib::processEvents (this=0x7fa9c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7faa4a5dcd50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007faa8112b3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007faa842cfef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007faa811302be in QThreadPrivate::start (arg=0x208a4d0) at thread/qthread_unix.cpp:337
#9  0x00007faa8021f6aa in start_thread (arg=0x7faa4a5dd700) at pthread_create.c:333
#10 0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7faa48e08700 (LWP 2369)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1988fe0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x19407f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x1940770) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7faa48e08700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fa9befff700 (LWP 2371)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x222d620) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1fb4400, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x1fb4380) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa9befff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fa9bd7fe700 (LWP 2372)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2d1f170) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2d1edf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x2d1ed70) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa9bd7fe700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fa9a6250700 (LWP 2400)):
#0  0x00007faa7d7e9888 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007faa7d7ea11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa8136729b in QEventDispatcherGlib::processEvents (this=0x7fa9a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7fa9a624fd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007faa8112b3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fa9b06968f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007faa811302be in QThreadPrivate::start (arg=0x3a8ba60) at thread/qthread_unix.cpp:337
#8  0x00007faa8021f6aa in start_thread (arg=0x7fa9a6250700) at pthread_create.c:333
#9  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fa99ed41700 (LWP 2408)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3f3eea0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3f9c8b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x3f9c830) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa99ed41700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fa99d440700 (LWP 2409)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x46a5df0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4106000, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x4105f80) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa99d440700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fa98ffff700 (LWP 2679)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5087e70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5096f20, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x5096ea0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa98ffff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fa98e7fe700 (LWP 2680)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x55276e0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4ff2a80, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x4ff2a00) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa98e7fe700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fa98cbee700 (LWP 2880)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x40f0b30) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x551aec0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x551ae40) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa98cbee700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fa97efff700 (LWP 2940)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x66ef510) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6731a40, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x67319c0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa97efff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fa97d7fe700 (LWP 2941)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x6cc5fe0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6addbe0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x6addb60) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa97d7fe700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fa97cffd700 (LWP 3103)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x7270730) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3e97f30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x3e97eb0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa97cffd700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fa975fff700 (LWP 3104)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x7238e60) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7265c50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x7265bd0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa975fff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fa96bfff700 (LWP 4327)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x4db5710) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6032e10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x6032d90) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa96bfff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fa96a7fe700 (LWP 5388)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x8f97770) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x86cfd30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x86cfcb0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa96a7fe700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fa968cfd700 (LWP 5507)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x50114b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x8de2b20, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x8de2aa0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa968cfd700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fa956fff700 (LWP 5769)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x979de50) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x8915370, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0x89152f0) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa956fff700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fa9557fe700 (LWP 7424)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa8113155b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x8768910) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xa00a280, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007faa84342b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007faa843433c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007faa811302be in QThreadPrivate::start (arg=0xa00a200) at thread/qthread_unix.cpp:337
#6  0x00007faa8021f6aa in start_thread (arg=0x7fa9557fe700) at pthread_create.c:333
#7  0x00007faa80a48eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7faa8628d800 (LWP 2287)):
[KCrash Handler]
#6  KXErrorHandler::handle (this=0x91, dpy=0x1474800, e=0x7ffdd49774c0) at ../../../../src/platforms/xcb/kxerrorhandler.cpp:109
#7  0x00007faa703d752e in KXErrorHandler::handler_wrapper (dpy=<optimized out>, e=<optimized out>) at ../../../../src/platforms/xcb/kxerrorhandler.cpp:102
#8  0x00007faa84cdbc4d in _XError (dpy=dpy@entry=0x1474800, rep=rep@entry=0x7faa6c0043f0) at ../../src/XlibInt.c:1429
#9  0x00007faa84cd8ad7 in handle_error (dpy=0x1474800, err=0x7faa6c0043f0, in_XReply=<optimized out>) at ../../src/xcb_io.c:213
#10 0x00007faa84cd8b95 in handle_response (dpy=dpy@entry=0x1474800, response=0x7faa6c0043f0, in_XReply=in_XReply@entry=1) at ../../src/xcb_io.c:325
#11 0x00007faa84cd9ae5 in _XReply (dpy=dpy@entry=0x1474800, rep=rep@entry=0x7ffdd49776b0, extra=extra@entry=0, discard=discard@entry=0) at ../../src/xcb_io.c:648
#12 0x00007faa751caf32 in XIQueryDevice (dpy=0x1474800, deviceid=deviceid@entry=0, ndevices_return=ndevices_return@entry=0x7ffdd497777c) at ../../src/XIQueryDevice.c:60
#13 0x00007faa7562576f in QXcbConnection::xi2SetupDevices (this=this@entry=0x1474440) at qxcbconnection_xi2.cpp:108
#14 0x00007faa75626e80 in QXcbConnection::xi2HandleHierachyEvent (this=this@entry=0x1474440, event=0x7faa6c005d90) at qxcbconnection_xi2.cpp:626
#15 0x00007faa756271bf in QXcbConnection::xi2HandleHierachyEvent (event=0x7faa6c005d90, this=0x1474440) at qxcbconnection_xi2.cpp:624
#16 QXcbConnection::xi2HandleEvent (this=this@entry=0x1474440, event=event@entry=0x7faa6c005d90) at qxcbconnection_xi2.cpp:465
#17 0x00007faa75605e37 in QXcbConnection::handleXcbEvent (this=this@entry=0x1474440, event=event@entry=0x7faa6c005d90) at qxcbconnection.cpp:944
#18 0x00007faa756063b3 in QXcbConnection::processXcbEvents (this=0x1474440) at qxcbconnection.cpp:1303
#19 0x00007faa81341651 in QObject::event (this=0x1474440, e=<optimized out>) at kernel/qobject.cpp:1245
#20 0x00007faa81dedb8c in QApplicationPrivate::notify_helper (this=this@entry=0x1467b50, receiver=receiver@entry=0x1474440, e=e@entry=0x7faa6c007f40) at kernel/qapplication.cpp:3720
#21 0x00007faa81df3230 in QApplication::notify (this=0x7ffdd4978340, receiver=0x1474440, e=0x7faa6c007f40) at kernel/qapplication.cpp:3503
#22 0x00007faa8130ff1b in QCoreApplication::notifyInternal (this=0x7ffdd4978340, receiver=0x1474440, event=event@entry=0x7faa6c007f40) at kernel/qcoreapplication.cpp:935
#23 0x00007faa81312057 in QCoreApplication::sendEvent (event=0x7faa6c007f40, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x145cf50) at kernel/qcoreapplication.cpp:1552
#25 0x00007faa81312588 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#26 0x00007faa81366e73 in postEventSourceDispatch (s=0x14abc70) at kernel/qeventdispatcher_glib.cpp:271
#27 0x00007faa7d7e9ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007faa7d7ea250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007faa7d7ea2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007faa8136727f in QEventDispatcherGlib::processEvents (this=0x149ddd0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#31 0x00007faa8130d75a in QEventLoop::exec (this=this@entry=0x7ffdd49781c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#32 0x00007faa813152cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#33 0x00007faa8162a00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#34 0x00007faa81dea025 in QApplication::exec () at kernel/qapplication.cpp:2956
#35 0x00000000004322c3 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 356264, bug 355016, bug 354118, bug 353831, bug 352531.

Reported using DrKonqi