I've found two files, that probably should be fixed: /etc/gdm/gdm.schemas and /usr/share/gdm/gdm.schemas, while everything would work only after the second is fixed, while the first makes no sense:
** Patch added: "gdm-greeter.patch" https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/699930/+attachment/1787192/+files/gdm-greeter.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/699930 Title: gdm greeter shows mpd in the user list -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
