This could be changes to video drivers in the kernel. Please describe your graphics card used.
Oops, I did intened to mention that. It's an Nvidia GeForce 6600GT 128MB (generic unbranded reference board).
Please try the following: 1) add "ramdisk = /usr/sbin/mkinitrd.yaird" to /etc/kernel-img.conf 2) make a backup of the initrd for your older working kernel 3) Run "dpkg-reconfigure <old kernel package>" 4) Reboot with older kernel
Now older kernel hits same problem. So I guess this is yaird problem then?
You can also try installing initramfs-tools, uninstalling yaird, run "dpkg-reconfigure <new kernel package>" and reboot with new kernel.
Also has no video on boot. Richard.