Nothing for x-display-manager
Though x-window-manager is set to /usr/bin/kwin. I manually went into
/etc/rc3.d/ and added an entry for kdm back when I switched from Gnome and it started working. That entry seems to be gone now. Hmmm ...
Oh, and:
drook@drookenstein:~$ cat /etc/X11/default-display-manager\n/usr/bin/kdm
Like I said, I see the line where kdm tries to start, it just doesn't actually start.