Application: ksmserver-logout-greeter (ksmserver-logout-greeter), signal: Aborted

[Bump]

when switching from nvidia to nouveau using software-properties-gtk, it crashed.

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 0x7f53e7a64480 (LWP 11369))]

Thread 3 (Thread 0x7f53cb648700 (LWP 11371)):
#0 0x00007f53e32f3bf9 in __GI___poll (fds=0x7f53c4004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f53dc11b439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f53dc11b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f53e3c4190b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f53e3be69ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f53e3a0522a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f53e4827d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7 0x00007f53e3a0a16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f53dde366db in start_thread (arg=0x7f53cb648700) at pthread_create.c:463
#9 0x00007f53e330088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f53d16b7700 (LWP 11370)):
#0 0x00007f53e32f3bf9 in __GI___poll (fds=0x7f53d16b6c68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f53de496747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007f53de49836a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007f53d3e3a2a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4 0x00007f53e3a0a16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f53dde366db in start_thread (arg=0x7f53d16b7700) at pthread_create.c:463
#6 0x00007f53e330088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f53e7a64480 (LWP 11369)):
[KCrash Handler]
#6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7 0x00007f53e321f801 in __GI_abort () at abort.c:79
#8 0x00007f53e39f4fa7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9 0x00007f53d0697254 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#10 0x00007f53d0694bb7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#11 0x00007f53d3e40581 in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#12 0x00007f53e41e701f in QOpenGLContext::create() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f53d0697a10 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#14 0x00007f53d0698051 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#15 0x00007f53e633f465 in QSGRenderLoop::instance() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f53e63ac9aa in QQuickWindowPrivate::init(QQuickWindow*, QQuickRenderControl*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f53e643dc3d in QQuickView::QQuickView(QWindow*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x0000565075e197a2 in ?? ()
#19 0x0000565075e1880b in ?? ()
#20 0x0000565075e18af0 in ?? ()
#21 0x0000565075e18116 in ?? ()
#22 0x00007f53e3200b97 in __libc_start_main (main=0x565075e17d40, argc=6, argv=0x7fffdec5f208, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdec5f1f8) at ../csu/libc-start.c:310
#23 0x0000565075e1826a in _start ()

[Scarlett Gately Moore (scarlettmoore)]

This bug is very old, if it is still an issue please update the bug with info from a supported release.