Description of problem:
When I connect to a remote host through a vnc client (remmina, vinagre, TigerVNC viewer, TS client, gnome-rdp ...), I cannot use the ALT-GR key on my french keyboard.

The ALT-GR key is used to type some characters.

KEY        : & é " ' ( - è _ ç à ) = $
SHIFT KEY  : 1 2 3 4 5 6 7 8 9 0 ° + £
ALT-GR KEY : ¹ ~ # { [ | ` \ ^ @ ] } ¤


Version-Release number of selected component (if applicable):
vnc server: tigervnc-server-minimal-1.0.90-0.25.20100813svn4123.fc14.x86_64
vnc client: tsclient-2.0.2-7.fc13.x86_64, vinagre-2.31.4-1.fc14.x86_64, remmina-0.7.5-3.fc14.x86_64, tigervnc-1.0.90-0.25.20100813svn4123.fc14.x86_64


How reproducible:
All the time with any client.

Steps to Reproduce:
1. Setup a vnc server.

Create file /etc/xinetd.d/vnc1920:

----------------------------
service vnc1920
{
disable = no
socket_type = stream
protocol = tcp
group = tty
wait = no
user = nobody
server = /usr/bin/Xvnc
server_args = -inetd -query localhost -geometry 1920x1200 -depth 24 -once -fp /usr/share/X11/fonts/misc -securitytypes=none
}
----------------------------

Modify file /etc/gdm/custom.conf so it lmooks like this:
----------------------------
# GDM configuration storage

[daemon]

[security]
DisallowTCP=false

[xdmcp]
Enable=true

[greeter]

[chooser]

[debug]
----------------------------

Modify file /etc/services so it looks like:

----------------------------
[...]
#vnc-server      5900/tcp                # VNC Server
#vnc-server      5900/udp                # VNC Server
vnc1920         5900/tcp                # VNC and GDM
[...]
----------------------------

Start vnc1920 service:

# service vnc1920 start

Make sure it starts at boot time:

# chkconfig vnc1920 on

You may have to reboot the server.

2. On the client, install a vnc client/viewer and connect to the remote vnc server.

3. When you get the login screen, log in and then open a terminal and type ALT-GR Key(à 0 @) to get a '@' for example.
You will only get a 'à'.
  
Additional info:
At the login screen however, i can get a '@' in the field where i type the login name.

Is this really a bug or a mis-configuration?