Then its a kdm bug. dbus-launch (or dbus-daemon --session, IIRC) is supposed to export that environment variable. KDE does not use a lot of dbus otherwise you would have noticed it somewhere else too.
Then its a kdm bug. dbus-launch (or dbus-daemon --session, IIRC) is supposed to export that environment variable. KDE does not use a lot of dbus otherwise you would have noticed it somewhere else too.