[gdm-list] trouble with gdm

[Jean Philippe Guillet <guillet lapp in2p3 fr>]

Hello
I am not a linux expert and I apologize in advance if my mail is not clear.
I have installed Fedora Core 6 on a bi opteron server. Then, I want to 
connect this server with a X terminal via xdmcp. The server uses GDM as 
display manager (GDM 2.16.5). I set the file custom.conf like that:

[daemon]

[security]
AllowRemoteRoot=true
DisallowTCP=false

[xdmcp]
Enable=true

[gui]

[greeter]
DefaultRemoteWelcome=false
RemoteWelcome=Bienvenue %n

[chooser]

[debug]
Enable=true

[servers]

But the xdmcp connection does not work. It crashes just before that the 
connection screen appears. In the file /var/log/messages I got the 
following error : (lappc-f020 is the server and lapxt144 is the X terminal)

May 14 15:11:56 lappc-f020 gdm[3053]: gdm_socket_handler: Accepting new 
connection fd 17
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'VERSION'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'VERSION'
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'GDM 2.16.5'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'GET_CONFIG 
greeter/RemoteWelcome[fr_FR.UTF-8] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'GET_CONFIG 
greeter/RemoteWelcome[fr_FR.UTF-8] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Error returning config key 
greeter/RemoteWelcome[fr_FR.UTF-8]
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'ERROR 50 
Unsupported key <greeter/RemoteWelcome[fr_FR.UTF-8]>'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: gdm_socket_handler: Accepting new 
connection fd 17
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'VERSION'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'VERSION'
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'GDM 2.16.5'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'GET_CONFIG 
greeter/RemoteWelcome[fr_FR] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'GET_CONFIG 
greeter/RemoteWelcome[fr_FR] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Error returning config key 
greeter/RemoteWelcome[fr_FR]
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'ERROR 50 
Unsupported key <greeter/RemoteWelcome[fr_FR]>'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'CLOSE'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'VERSION'
May 14 15:11:56 lappc-f020 gdm[3053]: gdm_socket_handler: Accepting new 
connection fd 17
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'VERSION'
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'GDM 2.16.5'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'GET_CONFIG 
greeter/RemoteWelcome[fr.UTF-8] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'GET_CONFIG 
greeter/RemoteWelcome[fr.UTF-8] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Error returning config key 
greeter/RemoteWelcome[fr.UTF-8]
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'ERROR 50 
Unsupported key <greeter/RemoteWelcome[fr.UTF-8]>'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'CLOSE'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'VERSION'
May 14 15:11:56 lappc-f020 gdm[3053]: gdm_socket_handler: Accepting new 
connection fd 17
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'VERSION'
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'GDM 2.16.5'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'GET_CONFIG 
greeter/RemoteWelcome[fr] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'GET_CONFIG 
greeter/RemoteWelcome[fr] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Error returning config key 
greeter/RemoteWelcome[fr]
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'ERROR 50 
Unsupported key <greeter/RemoteWelcome[fr]>'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'CLOSE'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'VERSION'
May 14 15:11:56 lappc-f020 gdm[3053]: gdm_socket_handler: Accepting new 
connection fd 17
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'VERSION'
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'GDM 2.16.5'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'GET_CONFIG 
greeter/RemoteWelcome[C] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'GET_CONFIG 
greeter/RemoteWelcome[C] lapxt144.in2p3.fr:0'
May 14 15:11:56 lappc-f020 gdm[3053]: Error returning config key 
greeter/RemoteWelcome[C]
May 14 15:11:56 lappc-f020 gdmlogin[3147]:   Got response: 'ERROR 50 
Unsupported key <greeter/RemoteWelcome[C]>'
May 14 15:11:56 lappc-f020 gdmlogin[3147]: Sending command: 'CLOSE'
May 14 15:11:56 lappc-f020 gdm[3053]: Handling user message: 'CLOSE'
May 14 15:11:57 lappc-f020 gdm[3137]: gdm_slave_wait_for_login: In loop
May 14 15:11:57 lappc-f020 gdm[3137]: term_quit: Final cleanup
May 14 15:11:57 lappc-f020 gdm[3137]: gdm_slave_quick_exit: Will kill 
everything from the display
May 14 15:11:57 lappc-f020 gdm[3137]: Running gdm_verify_cleanup and 
pamh != NULL
May 14 15:11:57 lappc-f020 gdm[3137]: gdm_slave_quick_exit: Killed 
everything from the display
May 14 15:11:57 lappc-f020 gdm[3053]: mainloop_sig_callback: Got signal 17
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_cleanup_children: child 3137 
returned 65
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_child_action: In remanage
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_display_unmanage: Stopping 
lapxt144.in2p3.fr:0 (slave pid: 0)
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_display_dispose: Disposing 
lapxt144.in2p3.fr:0
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_display_unmanage: Display stopped
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_xdmcp_decode: Received opcode 
BROADCAST_QUERY from client 134.158.97.58
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_xdmcp_handle_query: Opcode 1 
from 134.158.97.58
May 14 15:11:57 lappc-f020 gdm[3053]: gdm_xdmcp_send_willing: Sending 
WILLING to 134.158.97.58

Can you help me to fix this problem?
Thank you in advance.
                                        Jean-Philippe Guillet