Application: kwin_x11 (5.6.3)

Qt Version: 5.6.0
Frameworks Version: 5.21.0
Operating System: Linux 4.5.2-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- Unusual behavior I noticed: When i use the second external monintor with macbook pro, after wake up there is some crash

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb825793840 (LWP 1130))]

Thread 10 (Thread 0x7fb808ee9700 (LWP 1146)):
#0  0x00007fb824fa8abd in poll () from /usr/lib/libc.so.6
#1  0x00007fb822a64ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fb822a66757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fb809dbea79 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fb802cfb700 (LWP 1147)):
#0  0x00007fb822f51a32 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/libQt5Core.so.5
#1  0x00007fb822f51eca in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb822efc46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#3  0x00007fb822d232f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#4  0x00007fb81beffa65 in ?? () from /usr/lib/libQt5DBus.so.5
#5  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#6  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fb7fbdf9700 (LWP 1163)):
#0  0x00007ffc62d0cc3f in clock_gettime ()
#1  0x00007fb824fbe786 in clock_gettime () from /usr/lib/libc.so.6
#2  0x00007fb822dd3d96 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fb822f52299 in QTimerInfoList::updateCurrentTime() () from /usr/lib/libQt5Core.so.5
#4  0x00007fb822f516de in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb822f51eca in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fb822efc46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fb822d232f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fb81cf90915 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fb7fa2be700 (LWP 1165)):
#0  0x00007fb82527809f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb821c7e134 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007fb821c7e179 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fb75bfff700 (LWP 13035)):
#0  0x00007fb824faa783 in select () from /usr/lib/libc.so.6
#1  0x00007fb822f4ffef in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb822f519dc in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/libQt5Core.so.5
#3  0x00007fb822f51eca in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fb822efc46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb822d232f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fb81cf90915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fb761a3d700 (LWP 13036)):
#0  0x00007ffc62d0cc3f in clock_gettime ()
#1  0x00007fb824fbe786 in clock_gettime () from /usr/lib/libc.so.6
#2  0x00007fb822dd3d96 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fb822f52299 in QTimerInfoList::updateCurrentTime() () from /usr/lib/libQt5Core.so.5
#4  0x00007fb822f516de in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb822f51eca in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fb822efc46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fb822d232f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fb81cf90915 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fb76360a700 (LWP 13037)):
#0  0x00007fb82527809f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb822d2908b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb81d65db8d in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007fb81d65e465 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fb800834700 (LWP 13038)):
[KCrash Handler]
#5  0x00007fb822f2f70f in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/libQt5Core.so.5
#6  0x00007fb8234841c5 in QOpenGLContext::setScreen(QScreen*) () from /usr/lib/libQt5Gui.so.5
#7  0x00007fb822f2c179 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#8  0x00007fb823c267bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#9  0x00007fb823c2b95f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#10 0x00007fb822efe280 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#11 0x00007fb822f001fc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#12 0x00007fb822f51db2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#13 0x00007fb81d65e34b in ?? () from /usr/lib/libQt5Quick.so.5
#14 0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#16 0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fb760a3c700 (LWP 13070)):
#0  0x00007fb82527809f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb822d2908b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb81d65db8d in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007fb81d65e465 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007fb822d281d8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb825272474 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb824fb1acd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fb825793840 (LWP 1130)):
#0  0x00007fb82527809f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb822d2908b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb81d65ae94 in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007fb81d65b7ea in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007fb81d690c63 in QQuickWindow::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#5  0x00007fb823c267bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#6  0x00007fb823c2b95f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#7  0x00007fb822efe280 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#8  0x00007fb82345530e in QWindowPrivate::deliverUpdateRequest() () from /usr/lib/libQt5Gui.so.5
#9  0x00007fb823455849 in QWindow::event(QEvent*) () from /usr/lib/libQt5Gui.so.5
#10 0x00007fb81d690c85 in QQuickWindow::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#11 0x00007fb823c267bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007fb823c2b95f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007fb822efe280 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#14 0x00007fb822f535ee in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#15 0x00007fb822f51e9b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#16 0x00007fb809e315dd in ?? () from /usr/lib/libQt5XcbQpa.so.5
#17 0x00007fb822efc46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#18 0x00007fb822f04a0c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#19 0x00007fb82548da65 in kdemain () from /usr/lib/libkdeinit5_kwin_x11.so
#20 0x00007fb824eea741 in __libc_start_main () from /usr/lib/libc.so.6
#21 0x0000000000400769 in _start ()

Possible duplicates by query: bug 362754, bug 362137.

Reported using DrKonqi