Pkg xen devel - Feb 2012 - Bug#658606: Further information on this bug

The system had an nVidia graphics card in it (nVidia GeForce 6200LE).  I 
removed this and replaced it with an ATI Radeon X300SE.

Now the display does not go blank, and the udevadm settle stage finishes 
(printing `done').  However, the system only proceeds to boot if one 
presses keys (shift will do) on the keyboard.

The configuring network interfaces step is very slow, and once the system 
has booted fully multi-user it responds very sluggishly when connected via 
SSH or at the console.

(S)