I discovered that deleting the Jabber GTalk account and replacing it with a full Google account solves the problem, so it looks like a bad interaction with the gabble ---> signond --> google-talkplugin combination.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1168582 Title: Google talk "Requires Authorization" after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/empathy/+bug/1168582/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs