Please have a look in /var/crash and if you find a relevant crash file then upload it using this command:
apport-cli /var/crash/YOURFILE.crash This bug is incomplete because we don't yet know which crash it is. Quite likely it's one of the ones in functions starting with "st_" in this list: https://errors.ubuntu.com/?package=gnome-shell&period=month ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737993 Title: Gnome-shell segfault and returns to login screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1737993/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs