Here's my current patch series that grew from implementing suspend to disk for my powermac to a general suspend code cleanup. One of the nice patches in this series allows you to finally suspend via echo mem > /sys/power/state on powerbooks! I've tested this whole patchset on my powerbook as well as my powermac (which can with it suspend for the first time) and it all works well. I expect that you will be finding problems with this, but I hope to get this included some time in the not-too-distant future. This patchset depends on the patches * snd-aoa: fix onyx resume * windfarm: don't die on suspend thread signal to work, but will probably not apply unless you also have * powermac: clean up PIC initialisation code johannes