I have been trying to get ACPI suspend/resume working on the Compaq nc6000 for some time (tried using Fedora Core 3/4), I gave up and turned to software suspend after seeing
The setup is fairly straightforward following the guide at http://mhensler.de/swsusp/. Follow the instructions correctly and you should be up and running in 30 mins. Make sure you use the right packages, double check the version numbers especially for the mkinitrd scripts.
http://suspend2.epfl.ch/
