Comment 4 for bug 442795

Can confirm this is still an issue in 9.10 final

Starting gdm from inside a termnal gives...

** (gdmsetup:2438): WARNING **: Error calling GetValue('daemon/TimedLoginEnable'): The name org.gnome.DisplayManager was not provided by any .service files
** (gdmsetup:2438): WARNING **: Error calling GetValue('daemon/TimedLoginDelay'): The name org.gnome.DisplayManager was not provided by any .service files
** (gdmsetup:2438): DEBUG: init delay=30
** (gdmsetup:2438): DEBUG: Failed to identify the current session: Unable to lookup session information for process '2438'
** (gdmsetup:2438): WARNING **: Unable to find users: no seat-id found
** (gdmsetup:2438): DEBUG: GdmUserManager: explicitly skipping user: nobody
** (gdmsetup:2438): DEBUG: GdmUserManager: user icon changed
** (gdmsetup:2438): DEBUG: adding monitor for '/home/ubuntu/.face'
** (gdmsetup:2438): DEBUG: GdmUserManager: user icon changed
** (gdmsetup:2438): DEBUG: adding monitor for '/home/me/.face'
** (gdmsetup:2438): DEBUG: Getting list of sessions for user 1001
** (gdmsetup:2438): DEBUG: Found 1 sessions for user me
** (gdmsetup:2438): DEBUG: GdmUserManager: not adding session on other seat: /org/freedesktop/ConsoleKit/Session1
** (gdmsetup:2438): DEBUG: Getting list of sessions for user 1000
** (gdmsetup:2438): DEBUG: Found 0 sessions for user ubuntu

While clicking on the unlock button adds....

** (gdmsetup:2447): WARNING **: Failed to unlock: The name org.gnome.DisplayManager was not provided by any .service files

Appears other users are also having the same issue...

http://wwww.ubuntuforums.org/showthread.php?t=1308700

http://newyork.ubuntuforums.org/showthread.php?p=8129447