Bug#630778: xdm does not just work

[Andrew Buckeridge <andrewb@bgc.com.au>]

Package: xdm
Version: 1:1.1.10-3

Remote display is actually 
10.253.0.200
00:80:64:32:01:70 (Wyse Technology)

The ps command just displayed: --
> 5027 ?        Ss     0:00 /usr/bin/xdm
> 5308 ?        Ss     0:00  \_ -10.253.0.20