I just upgraded from 10.04 LTS to 12.04 LTS on my server (DELL Intel XEON). By SSH login from my mac (OS X Lion) everything is fine (no issues with command lines) but when I open a window through X11, the keyboard layout is now completely messed up. As an owner of a french mac keyboard, I got used to such issues and could deal by guessing the "QUERTY" keys, but this time it's worse.

To fix it, I tried:

1/

sudo dpkg-reconfigure keyboard-configuration

=> no effect

2/

sudo gnome-control-center

then change the keyboard settings, however adding a couple of keyboard layouts did not change anything.

I feel there is something to do with the X11 forwarding. Any hints?

Thanks