Nope. Problem still there...
$ sudo LANGUAGE=C gdmsetup gdmsetup[8059]: CRITICAL: Error opening file: No such file or directory gdmsetup[8059]: CRITICAL: Error opening file: No such file or directory ...
$ dpgk -l gdm ii gdm 2.20.4-0ubuntu2 GNOME Display Manager
Nope. Problem still there...
$ sudo LANGUAGE=C gdmsetup
gdmsetup[8059]: CRITICAL: Error opening file: No such file or directory
gdmsetup[8059]: CRITICAL: Error opening file: No such file or directory
...
$ dpgk -l gdm
ii gdm 2.20.4-0ubuntu2 GNOME Display Manager