keyboard stay in US altough French selected system wide

I selected French keyboard during the install process.

Then the keyboard is still US when I'm logged into XFCE.

Note than the keybord is properly configured in a virtual console CTRL-ALT-F(1..6).

I tried to configure french into the language selector system wide but it doens't work.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xubuntu-desktop (not installed)
ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
Uname: Linux 3.13.0-23-generic x86_64
ApportVersion: 2.14.1-0ubuntu1
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Apr 9 08:53:21 2014
InstallationDate: Installed on 2014-04-03 (5 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: xubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)