Multiseat setup - multiseat-greeter

#!/bin/bash
#
#multiseat wrapper around ligthdm greeter in order to position each Xephyr instance
#
. /etc/multiseat/scripts/helper-functions

PRIMARY=`get_conf 0 PRIMARY`
SEAT=$1

if [ $SEAT != $PRIMARY ]; then
    XEP=`XAUTHORITY=/var/run/lightdm/root/:0 xwininfo -root -children -display :0 | grep "Xephyr on :$SEAT" --max-count=1`;
    XEPHYR_WIN_ID=`echo ${XEP} | cut -d' ' -f1`;
    DISPLACEMENT=`get_conf $SEAT DISPLACEMENT`
    DISPLAY=:0 XAUTHORITY=/var/run/lightdm/root/:0 wmctrl 2>&1 -v -i -r ${XEPHYR_WIN_ID} -e 0,${DISPLACEMENT},-1,-1;
fi

XAUTHORITY=/var/run/lightdm/root/:$2
DISPLAY=:$2
exec /usr/sbin/lightdm-gtk-greeter