KSMserver Crash Report

Application: ksmserver-logout-greeter (ksmserver-logout-greeter), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd6686d3880 (LWP 3570))]

Thread 3 (Thread 0x7fd666dec700 (LWP 3572)):
#0  0x00007fd66cab8aff in __GI___poll (fds=0x7fd6580029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd66ae5418e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd66ae542c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd66d054583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd66cffb4db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd66ce33785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd66d8c1efa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fd66ce349d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd66b8f6609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fd66cac5293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd66788c700 (LWP 3571)):
#0  0x00007fd66cab8aff in __GI___poll (fds=0x7fd66788bc28, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd66c662c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd66c66490a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd668002298 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fd66ce349d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd66b8f6609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fd66cac5293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd6686d3880 (LWP 3570)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007fd66c9c8859 in __GI_abort () at abort.c:79
#8  0x00007fd66cdfbaad in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fd66812f876 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#10 0x00007fd66812fd3b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#11 0x00007fd667fd9e8f in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#12 0x00007fd66d425911 in QOpenGLContext::create() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fd668132e9f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#14 0x00007fd66813377d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#15 0x00007fd66e773215 in QSGRenderLoop::instance() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fd66e7eafe9 in QQuickWindowPrivate::init(QQuickWindow*, QQuickRenderControl*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007fd66ef6ae34 in KQuickAddons::QuickViewSharedEngine::QuickViewSharedEngine(QWindow*) () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#18 0x000055f92287a408 in ?? ()
#19 0x000055f922878bbf in ?? ()
#20 0x000055f922878ec3 in ?? ()
#21 0x000055f92287c6f3 in ?? ()
#22 0x00007fd66d8ce63b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#23 0x00007fd66d8d3797 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#24 0x00007fd66d8d3f7e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#25 0x00007fd66d8d6ae2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#26 0x00007fd66d028d5a in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fd66dab9a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fd66dac30f0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fd66cffc93a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fd66cfff5b8 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fd66d054f67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fd66ae53f9d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fd66ae54220 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fd66ae542c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fd66d054565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007fd66cffb4db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007fd66d003246 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x000055f9228777cc in ?? ()
#39 0x00007fd66c9ca0b3 in __libc_start_main (main=0x55f922877540, argc=1, argv=0x7ffc2c47cb28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc2c47cb18) at ../csu/libc-start.c:308
#40 0x000055f92287791e in _start ()
[Inferior 1 (process 3570) detached]