[plug] More XDMCP and GDM Problems

[Tim White]

I now need my server to connect to another server also running XDMCP so 
I can administer the headless box. I have gdm=2.6.0.4-1 on the 'client' 
and gdm=2.2.5.5-2 on the server. I have set up the server so that it 
starts GDM without any local servers and this works fine. I can then 
login to the server from the client over XDMCP by selecting Actions-> 
Run XDMXP Chooser and selecting the appropriate box.
If I try to do this by starting another GDM session (with System 
Tools->New login, or Sytem Tools -> New Login in Nested Window) I can't 
get the XDMCP Chooser. I select it from the actions menu and it just 
closes the X server returning me to my original session.
I don't want to start a second server permenatelly or have to ask root 
to start the server as it should be easier. Does anybody know how to get 
GDM to connect to another server using XDMCP without logging out?
A `Xnest :1 -broadcast` works fine as my normal user with the 
disadvantage/advantage that I have to kill the X server to end the 
connection as hitting disconnect on gdm (server) just restarts gdm.
Interestingly running `sudo X :1 -broadcast` just game me a remote 
gdmlogin for the localmachine (which is the terminal server) and then 
hitting disconnect gave me a gdmlogin for the server. What should I run 
instead of -broadcast to get the host chooser(gdmchooser)?

Thanks
Tim