Bug#778573: Further steps

[Andy B <andy@bowdin.net>]

removed gnome and re-booted. There was no Xorg or graphical terminal
running (even though I have previously installed xfce)

installed kdm and re-booted.
Now there is a login screen perfectly displayed in the graphical window
and I can login and get a desktop ... except that it is xfce 

5 S root       741     1  0  80   0 -  1065 poll_s 19:54 ?
00:00:00 /usr/bin/kdm -config /var/run/kdm/kdmrc
4 S root       743   741  0  80   0 - 40710 poll_s 19:54 tty7
00:00:04 /usr/bin/X :0 vt7 -br -nolisten tcp
-auth /var/run/xauth/A:0-ayuEra
1 S root      1250   741  0  80   0 -  1155 unix_s 19:58 ?
00:00:00 -:0