Comment 4 for bug 75704

sorry for late reply, anyway my solution was set

ACPI_SLEEP=false
in /etc/default/acpi-support

that will prevent any functionality of sleep in your laptop

for make it boot one time and fix the acpi-support file, just stop GRUB at start and add "noacpi acpi=off" at the kernel parameters

anyway all those infos are taken from a discussion on ubuntu-users mailing list, link below:
https://lists.ubuntu.com/archives/ubuntu-users/2006-October/098078.html

good luck fixing your laptop!