This bug was reported for Ubuntu Desktop 17.10. I would like to add that the problem when disconnecting the only monitor also occurs when using Ubuntu Desktop 18.04 LTS (latest updates Jul19,2018). gnome-shell will not always crash but the desktop becomes unusable when using x11vnc. The new report#1782573 is already marked as a duplicate.
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1782573 https://www.dropbox.com/s/a8jjnw14uhtibzk/ubuntu1804-x11vnc- disconnected-monitor-fatal.mp4?dl=0 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1734044 Title: gnome-shell crashes when monitor turned off or switch kvm [meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int) number < g_list_length (manager->logical_monitors)' failed] To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1734044/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs