Comment 11 for bug 478274

Well, the "dbus" trick didn't make it either.
I tried with the following script:
-------------------------------------------
import dbus, traceback

bus = dbus.SystemBus()
mgr = bus.get_object('org.freedesktop.ConsoleKit',
                       '/org/freedesktop/ConsoleKit/Manager')
for seat_name in mgr.GetSeats():
    seat = bus.get_object('org.freedesktop.ConsoleKit',
                       seat_name)
    for session_name in seat.GetSessions():
        session = bus.get_object('org.freedesktop.ConsoleKit',
                                 session_name)
        if session.is_local:
            print "### Session '%s':" % (session.GetId(),)
            try:
                session.Activate()
            except:
                traceback.print_exc()
-------------------------------------------

and all tells me is (ran with sudo):
### Session '/org/freedesktop/ConsoleKit/Session2':
Traceback (most recent call last):
  File "./x.py", line 15, in <module>
    session.Activate()
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.GLib.UnmappedError.CkSeatError.Code0: Activation is not supported for this kind of seat

What is the "kind" of seat am I sitting on ?!???