This is not a bug, it was my fault. I had disabled the PolicyKit service, everything works correctly when PolicyKit is re-activated. Many apologies.
** Changed in: meta-gnome2 (Ubuntu) Status: Incomplete => Invalid -- user and groups refuses password to unlock https://bugs.launchpad.net/bugs/249888 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs