Thanks a lot Gapan, it works! The keysim is ubreve.
I uses altGr as you proposed instead of "^" and then "u".

Thanks Gapan.

I understand that it is a <linux general question ... not specific to salix.

Moreover my question appears more difficult that what I wrote first:
I don't want to remap a simple key, I want to remap a combinaison of keys: I want "^"+"u" so I cannot do a specific:
xmodmap -e 'keycode ...

Hello,

I am using french keyboard layout (azerty/fr-latin9) and I am very find with this but I would like to only remap a single key (I would like ^ + u to map to "ŭ" (esperanto accented u).

I have naively tried to write an ~/.XCompose file:
include "%L"
<dead_circumflex> <u> : "ŭ" U016D
<dead ...

Right, thanks for your answers

Hi,

As this is my first message, i would like to thanks you for the good job you made, it looks very polish!

I just installed the LXDE version without seing that it was based on 13.1 while 13.37 is out. It is a nice version but I need package update. Can I expect a new version of LXDE with 13.37 ...