session-wrapper does not work with session type ubuntu

[Kristian Benoit]

I setup a session-wrapper to let the user configure a pre/post session script. It work fine with fluxbox, gnome, ... but when the session is ubuntu, unity does not start. All I can do is Ctrl-Alt-T to get a terminal and start unity.

#!/bin/sh
if [ -x $HOME/.lightdm/login ] ; then
  logger -t lightdm "running $HOME/.lightdm/login"
  $HOME/.lightdm/login
fi

logger -t lightdm "Starting session: $@"
exec $@ &
pid=$!
wait $pid

if [ -x $HOME/.lightdm/logout ] ; then
  logger -t lightdm "running $HOME/.lightdm/logout"
  $HOME/.lightdm/logout
fi