I just opened a bug report on this same problem, 1781060. It's shown as a duplicate of this one however this bug, 1756079 has been in a status of 'New' and 'Unassigned' since I opened it 2018-03-15
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1756079 Title: gnome-shell crashed with SIGABRT: "assertion failed: (hlist->tail_before == handler)" in handler_unref_R() from handler_match_free1_R() from signal_handlers_foreach_matched_R() from g_signal_handlers_disconnect_matched() from meta_background_actor_set_background() Status in gnome-shell package in Ubuntu: New Bug description: lsb_release -rd Description: Ubuntu 16.04.4 LTS Release: 16.04 apt-cache policy gnome-shell gnome-shell: Installed: 3.18.5-0ubuntu0.3 Candidate: 3.18.5-0ubuntu0.3 Version table: *** 3.18.5-0ubuntu0.3 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages 100 /var/lib/dpkg/status 3.18.4-0ubuntu3 500 500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages Happened for no reason that I can see. Syslog output of the crash is here - https://paste.ubuntu.com/p/JJzsS7T6mQ/ ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: gnome-shell 3.18.5-0ubuntu0.3 ProcVersionSignature: Ubuntu 4.13.0-37.42~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-37-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CrashCounter: 1 CurrentDesktop: GNOME Date: Wed Mar 14 17:31:41 2018 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell ExecutableTimestamp: 1496068513 InstallationDate: Installed on 2014-10-24 (1237 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) ProcCmdline: /usr/bin/gnome-shell ProcCwd: /home/chris ProcEnviron: PATH=(custom, user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Signal: 6 SourcePackage: gnome-shell StacktraceTop: g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 g_signal_handlers_disconnect_matched () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 meta_background_actor_set_background () from /usr/lib/libmutter.so.0 Title: gnome-shell crashed with SIGABRT in g_assertion_message() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm libvirtd lpadmin netdev plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1756079/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
