Have all users who still have this bug affecting them tried installing the updated pacvkages available at posts 10 and 11 of the duplicate bug at https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1278681
It solved my problem completely.
Have all users who still have this bug affecting them tried installing the updated pacvkages available at posts 10 and 11 of the duplicate bug at https:/ /bugs.launchpad .net/ubuntu/ +source/ unity-greeter/ +bug/1278681
It solved my problem completely.