Same here. Been banging my head for months and couldn't find the reason or fix. Reinstalled everything from scratch and still the same. The last strings in log files were:
Syslog (repeated at least 10 times): g_object_unref: assertion 'G_IS_OBJECT (object)' failed Oct 27 09:52:39 Asgard gnome-session-binary[6607]: GLib-GObject-CRITICAL: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Authlog: Oct 27 09:52:39 Asgard polkitd(authority=local): Unregistered Authentication Agent for unix-session:c8 (system bus name :1.698, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale sl_SI.UTF-8) (disconnected from bus) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1547603 Title: Logout fails (Unity7,Ubuntu-Gnome, Xenial) Status in gnome-session package in Ubuntu: Confirmed Bug description: On my machine logout takes too long time and eventually fails. Syslog or /var/log/lightdm doesn't give something very useful. From syslog only error I find is: Feb 19 22:15:57 Saturnica gnome-session[1162]: gnome-session-binary[1162]: GLib-GObject-CRITICAL: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Feb 19 22:15:57 Saturnica gnome-session-binary[1162]: GLib-GObject-CRITICAL: g_object_unref: assertion 'G_IS_OBJECT (object)' failed...... I can reproduce this in both Gnome-shell and Unity7. I attaching the part of the syslog. If more information is required I will provide it. Gnome-session: 3.18.1.2-1ubuntu1 Systemd: 229-4ubuntu4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1547603/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
