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 0x7facde83d940 (LWP 16781))]

Thread 3 (Thread 0x7facdafd3700 (LWP 16783)):
#0  0x00007facee09927d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007face8a956f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007face8a51e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007face8a52330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007face8a5249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007facee9c537b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007facee96dffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007facee7969e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007facf1894515 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007facee79b808 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007face8f736ba in start_thread (arg=0x7facdafd3700) at pthread_create.c:333
#11 0x00007facee0a941d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7facdc2d5700 (LWP 16782)):
#0  0x00007facee09d74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007face99e3c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007face99e58d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007facde204d29 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007facee79b808 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007face8f736ba in start_thread (arg=0x7facdc2d5700) at pthread_create.c:333
#6  0x00007facee0a941d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7facde83d940 (LWP 16781)):
[KCrash Handler]
#6  0x00007facedfd7428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007facedfd902a in __GI_abort () at abort.c:89
#8  0x00007facee782f41 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007facf192ccd9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#10 0x00007facf192a92b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#11 0x00007facde20b781 in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#12 0x00007faceecfd4ad in QOpenGLContext::create() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007facf192d505 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#14 0x00007facf192d6e1 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#15 0x00007facf04020fb in QSGRenderLoop::instance() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007facf0435015 in QQuickWindowPrivate::init(QQuickWindow*, QQuickRenderControl*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007facf04e1cad in QQuickView::QQuickView(QWindow*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x0000000000407250 in ?? ()
#19 0x0000000000406152 in ?? ()
#20 0x0000000000406441 in ?? ()
#21 0x0000000000405a5d in ?? ()
#22 0x00007facedfc2830 in __libc_start_main (main=0x4056c0, argc=6, argv=0x7fff1cb361e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1cb361d8) at ../csu/libc-start.c:291
#23 0x0000000000405bb9 in _start ()