Sorry for bothering you, but I found the cause of the problem. I had 0 available bytes in my home directory. It did not allow me to login. I reduced reserved-blocks-percentage to 0% of /home device. It got me additional 2.8G of space.
But I think the bug still exists. I should be able to login and does not matter how much space I have left (0 bytes or 10G). Maybe, we need to change the title of the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996832 Title: Ubuntu 12.04 64 bits. Login screen - Unity does not allow to login in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/996832/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs