yes, i can also confirm this, same problem here after upgrading from precise to quantal. your solution works fine, i did not even have to reboot: deleting /var/lib/AccountsService/users/<login> and killing the accounts-daemon (/usr/lib/accountsservice/accounts-daemon) is enough.
there was no hint in the logs and i could only fix it after reading your post, so thanks very much. it would probably be very helpful if the developers could add a log message in this case. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1056833 Title: lightdm failed to log in my user after upgrade to Quantal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1056833/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs