Comment 34 for bug 846407

 After upgrade to 13.10, the following solution is not working anymore.

Ubuntu 13.04 updated to 2013-02-14 tested workaround

sudo apt-get install gnome-session-fallback
echo "gnome-session --session=gnome-fallback" > .xsession
sudo /etc/init.d/xrdp restart

Please note the change on echo cmd from others workarounds.
Session name 'ubuntu-2d' was changed by 'gnome-fallback'