tried to check this, but users-admin is run as normal users and no users can be added:
$ sudo users-admin ** (users-admin:14049): CRITICAL **: Unable to lookup session information for process '14049' -- users-admin doesn't add admin users to lpadmin https://bugs.launchpad.net/bugs/152107 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