It's possible the user had installed a copy of gnome-shell 48.beta in /usr/local which is now overriding the gsettings schema with an older version.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2103987 Title: gnome-shell crashed with SIGTRAP in g_settings_schema_get_value() from g_settings_schema_key_init() from g_settings_get_value() from update_output_luminance_settings() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2103987/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs