Comment 68 for bug 508516

After installing bootchart, resume (lid close/open) still takes 5 minutes. But.... pm-hibernate (as root), although it takes a few seconds to save the image to disk, resumes on pushing the power button in about 12.5 seconds!

So.... One can use pm-hibernate to save your running programs and then resume them by just hitting the power button.

Can the lid close/open be programmed to use pm-hibernate instead of pm-suspend? I think that /etc/acpi/lid.sh is what starts the suspend/resume but I can't really follow the script to the point where it calls pm-suspend. Sigh.... more reading! :-)