*** This bug is a duplicate of bug 1717170 *** https://bugs.launchpad.net/bugs/1717170
Public bug reported: A recent update (less than two weeks) in 17.10 introduced a bug where plugging or unplugging an external monitor immediately terminates Gnome Shell and brings back the login screen. I think these are the relevant log entries: Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: ** Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: mutter:ERROR:backends/meta-monitor-manager.c:2267:meta_monitor_manager_get_logical_monitor_from_number: assertion failed: (( unsigned int) number < g_list_length (manager->logical_monitors)) Oct 13 11:07:39 tadzim3 owncloud[2934]: Error reading events from display: Broken pipe Oct 13 11:07:39 tadzim3 evolution-alarm[2925]: Error reading events from display: Broken pipe Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: (EE) Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: Fatal server error: Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: (EE) failed to read Wayland events: Broken pipe Oct 13 11:07:39 tadzim3 org.gnome.Shell.desktop[2576]: (EE) Oct 13 11:07:39 tadzim3 gnome-session-binary[2526]: Unrecoverable failure in required component org.gnome.Shell.desktop Oct 13 11:07:39 tadzim3 gnome-session[2526]: gnome-session-binary[2526]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 6 Oct 13 11:07:39 tadzim3 gnome-session-binary[2526]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 6 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu2 ProcVersionSignature: Ubuntu 4.13.0-15.16-generic 4.13.4 Uname: Linux 4.13.0-15-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Oct 13 11:08:24 2017 DisplayManager: gdm3 InstallationDate: Installed on 2015-01-23 (993 days ago) InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-06-15 (120 days ago) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug artful wayland-session ** This bug has been marked a duplicate of bug 1717170 gnome-shell crashes with SIGABRT: mutter:ERROR:backends/meta-monitor-manager.c:2274:meta_monitor_manager_get_logical_monitor_from_number: assertion failed: ((unsigned int) number < g_list_length (manager->logical_monitors)) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1723438 Title: Regression: Gnome Shell crashes when plugging or unplugging external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1723438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs