More XDM

I tried a couple of additional steps:

I noticed in the syslog that the system is running mdkkdm, not gdm, so I opened /usr/share/config/kdm/kdmrc, found the [xdmcp] section, and changed Enable = false to Enable = true. I logged off and back in (using CTRL-ALT-BACKSPACE). No luck.

I browsed through the rest of the file, and found a line indicating the xdmcp port at 177 to be commented. I uncommented and logged out and back in. Still, nothing.

I'm not sure how to tell if the proper services are running (or even what they are) or how to see if port 177 is open and ready for business.