f7 : have xdmcp enabled but mac tiger loops on connection

[Skunk Worx]

I would like to start a remote desktop on my mac tiger box and see my 
Fedora 7 desktop. Some howtos on the web say I can use XDMCP on F7.

I'm new at this but several hints on the web helped me get this far. I'm 
hoping to get a "Xquartz" window or some such on the mac side.

It seems like the GETCONFIG of GtkModules has some issue between the 
machines? I don't have another F-box here with X or I would try that.

TIA,
John

Note : it doesn't matter if I point at the font server or not...I did 
that to eliminate a message about a "CID" font. It still loops.

On the mac side I see this :

$ /usr/X11R6/bin/X -query 10.0.0.1 -fp tcp/10.0.0.1:7100

XFree86 Version 4.4.0 / X Window System
(protocol Version 11, revision 0, vendor release 6600)
_XSERVTransmkdir: Owner of /tmp/.X11-unix should be set to root
[DRI] screen 0 installation complete
Screen 0 added: 1600x1200 @ (0,0)
[DRI] screen 0 installation complete
Screen 0 added: 1600x1200 @ (0,0)
^CQuitting XDarwin...

[it will keep looping if I don't ctrl-C]

On the Fedora side, with GDM debugging turned on, I see loops in 
/var/log/messages as follows :

(one cycle shown)
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_decode: Received opcode QUERY 
from client 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_query: Opcode 2 from 
10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_send_willing: Sending WILLING 
to 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_decode: Received opcode 
REQUEST from client 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_request: Got REQUEST 
from 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_request: 
xdmcp_pending=0, MaxPending=4, xdmcp_sessions=0, MaxSessions=16, 
ManufacturerID=
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_display_dispose_check 
(10.0.0.3:0)
Jul 18 23:32:51 eyore gdm[2628]: gdm_auth_secure_display: Setting up 
access for 10.0.0.3:0
Jul 18 23:32:51 eyore gdm[2628]: gdm_auth_secure_display: Setting up access
Jul 18 23:32:51 eyore gdm[2628]: gdm_auth_secure_display: Setting up 
access for 10.0.0.3:0 - 1 entries
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_display_alloc: 
display=10.0.0.3:0, session id=-603236673, xdmcp_pending=1
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_send_accept: Sending ACCEPT 
to 10.0.0.3 with SessionID=-603236673
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_decode: Received opcode 
MANAGE from client 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_manage: Got MANAGE 
from 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_manage: Got Display=0, 
SessionID=-603236673 Class=MIT-unspecified from 10.0.0.3
Jul 18 23:32:51 eyore gdm[2628]: gdm_xdmcp_handle_manage: Looked up 
10.0.0.3:0
Jul 18 23:32:51 eyore gdm[2628]: gdm_choose_indirect_lookup: Host 
10.0.0.3 not found
Jul 18 23:32:51 eyore gdm[2628]: gdm_forward_query_lookup: Host 10.0.0.3 
not found
Jul 18 23:32:51 eyore gdm[2628]: gdm_display_manage: Managing 10.0.0.3:0
Jul 18 23:32:51 eyore gdm[2628]: loop check: last_start 0, last_loop 0, 
now: 1184826771, retry_count: 0
Jul 18 23:32:51 eyore gdm[2628]: Resetting counts for loop of death 
detection
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_start: Starting slave process 
for 10.0.0.3:0
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_start: Loop Thingie
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: Opening display 10.0.0.3:0
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: maxtries = 10
Jul 18 23:32:51 eyore gdm[2628]: gdm_display_manage: Forked slave: 3768
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: display 10.0.0.3:0 is 
now open
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: settings a busy cursor
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: pausing for no reason at all
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: checking pending notifies
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: installing a ping alarm 
at interval 15
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: initializing xinerama, etc
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: machine has xinerama
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: display 10.0.0.3:0 has 
1 screens
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: using head 1
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: head 1600 has 
dimensions (1178x0+22+0)
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: display->lrh_offsetx = 0
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: display->lrh_offsety = 0
Jul 18 23:32:51 eyore gdm[3768]: gdm_screen_init: xinerama configured
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: checking notifies
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_run: starting greeter
Jul 18 23:32:51 eyore gdm[3768]: gdm_slave_greeter: Running greeter on 
10.0.0.3:0
Jul 18 23:32:52 eyore gdm[3768]: gdm_slave_greeter: Greeter on pid 3778
Jul 18 23:32:52 eyore gdm[3768]: Sending GREETPID == 3778 for slave 3768
Jul 18 23:32:52 eyore gdm[2628]: Handling message: 'GREETPID 3768 3778'
Jul 18 23:32:52 eyore gdm[2628]: Got GREETPID == 3778
Jul 18 23:32:52 eyore gdm[2628]: gdm_socket_handler: Accepting new 
connection fd 14
Jul 18 23:32:52 eyore gdm[2628]: Handling user message: 'VERSION'
Jul 18 23:32:52 eyore gdm[2628]: Handling user message: 'GET_CONFIG 
daemon/AddGtkModules 10.0.0.3:0'
Jul 18 23:32:52 eyore gdm[2628]: Handling user message: 'CLOSE'
Jul 18 23:32:52 eyore gdm[3768]: term_quit: Final cleanup
Jul 18 23:32:52 eyore gdm[3768]: gdm_slave_quick_exit: Will kill 
everything from the display
Jul 18 23:32:52 eyore gdm[3768]: gdm_slave_quick_exit: Killed everything 
from the display
Jul 18 23:32:52 eyore gdm[2628]: mainloop_sig_callback: Got signal 17
Jul 18 23:32:52 eyore gdm[2628]: gdm_cleanup_children: child 3768 
returned 65
Jul 18 23:32:52 eyore gdm[2628]: gdm_child_action: In remanage
Jul 18 23:32:52 eyore gdm[2628]: gdm_display_unmanage: Stopping 
10.0.0.3:0 (slave pid: 0)
Jul 18 23:32:52 eyore gdm[2628]: gdm_display_dispose: Disposing 10.0.0.3:0
Jul 18 23:32:52 eyore gdm[2628]: gdm_display_unmanage: Display stopped