Comment 4 for bug 862125

Here the output of
$ apt-cache policy lightdm
lightdm:
  Installed: 1.2.3-0ubuntu2.3
  Candidate: 1.2.3-0ubuntu2.3
  Version table:
 *** 1.2.3-0ubuntu2.3 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1.2.1-0ubuntu1 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages