On 18.3.2006, T. M. said: > Hi everybody, I have a PowerBook 12-inch, 1.5Ghz (System Profiler > says it's a PowerBook 6,8). I'd like to be able to save energy as > much as I can while on the road; I'd like to know: > > 1) Does my PowerBook support cpu scaling? How do I enable it? Can I > even make it run at 500Mhz or so?
I think it runs at either half-speed or full speed. You need to enable cpufreq scaling in the kernel. I'm not sure if the kernel governors work on ppc or on this model. I can say that I haven't had any luck with them, but I haven't tried them lately. If you use a userspace governor, you'll of course need something in userspace to control it. > > > > I've tried installing cpudyn and cpufreq but I don't > understand how to configure it and understand if it's actually > working. Do I need both cpufreq and cpudyn? No, one is enough. > 2) I would really like to be able to suspend my computer. I know > that I can't suspend to ram because Nvidia (I have Nvidia Geforce > 5200go) doesn't release drivers for PPC. (at least that's what I've > been told) I'd love to be able to suspend to disk... can my > PowerBook do that? Does it need a particular kernel? Yes. I don't think it was possible with kernels before 2.6.12 and there seems to have been a regression somewhere around 2.6.15, so any kernel from the 2.6.12-14 series should work. At least that's been my experience on this powerbook. The bad news is that you'll need a newer kernel for wireless. hope that helps. -- Guy Yasko -- [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
