I have a very similar backtrace when upgrading from precise to trusty: gabor@mycomputer:~$ update-manager # then I click on "Upgrade" to 14.04.1 LTS; then I have to enter my password WARNING:root:nothing unsupported running 0 (0) »trusty.tar.gz« wird gegenüber »trusty.tar.gz.gpg« legitimiert »trusty.tar.gz« wird entpackt can't load DistUpgradeViewGtk3 (Gtk couldn't be initialized)
** (trusty:13155): WARNING **: Befehlszeile »dbus-launch --autolaunch=36cdae6788e1edf1d3a649cc0000000a --binary-syntax --close-stderr« brach mit von Null verschiedenem Beenden-Status 1 ab: Autolaunch error: X11 initialization failed.\n /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: specified class size for type `PyGtkGenericCellRenderer' is smaller than the parent type's `GtkCellRenderer' class size from gtk import _gtk /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed from gtk import _gtk However, it's working fine when I launch it like this: pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY update-manager ** Summary changed: - update-manager crashes when trying to upgrade to quantal (Gtk couldn't be initialized) + update-manager crashes when trying to upgrade to quantal or trusty (Gtk couldn't be initialized) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1067992 Title: update-manager crashes when trying to upgrade to quantal or trusty (Gtk couldn't be initialized) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1067992/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
