Xephyr (on Linux host) and VMS keyboard

Hello,

I'm able to obtain a running VMS session with my VAX (simh). All but
keyboard run fine. I only have an error in 'host'_1.log file:

Executing run sys$system:decw$wsinit
 
%SYSTEM-F-ACCVIO, access violation, reason mask=01, virtual address=1211100F, PC
=80000010, PSL=03C00004

I don't know which image returns this access violation.

That being said, I have a french keyboard (Sun type7, azerty). Alt-gr key
is not mapped and when I try to send alt-gr+à ('@'), vms host only
receives 'à'.

Same result for alt-gr+( ([) or alt-gr+) (]). VMS session receive
receive ( and ) instead of [ and ].

I launch Xephyr with folling command:
Xephyr -ac :1 -screen 1024x768 -listen tcp -query fermat -keybd ephyr,,,xkbmodel=evdev,xkblayout=fr
but if I replace '-query fermat' by '-query legendre', I can open a
session on a NetBSD server that can receive '@'.

Help will be welcome,

JB
--
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une réponse.