I have fixed this by adding a sleep 10 to the upstart script that starts X11 its here : /etc/rcS.d/S70x11-common so far the GUI comes up every time will monitor further, currently testing on 20+ systems.
I have fixed this by adding a sleep 10 to the upstart script that starts X11 its here : /etc/rcS. d/S70x11- common so far the GUI comes up every time will monitor further, currently testing on 20+ systems.