Comment 33 for bug 133677

Frankly speaking, I don't understand the use of doing so much debugging, when s2ram solves the issue perfectly. Suspend/resume works out of box on suse here, because it uses s2ram. (-p -m are the required options on my laptop) - http://suspend.sourceforge.net/
Also, I think from hardy onwards this issue will be solved, because ubuntu will migrate to hal/pm-suspend infrastructure. Even there, most machines are supported out of box - http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-index.html

Ubuntu IMHO is just trying to over-complicate things by using acpi-support and what not !