> > So, any comments on how ACPI helps? Can it exploit PowerNow or is it > > something else that makes it run cooler? > > The main trouble with ACPI on Linux appears to be that Linux's support > for it is still in fairly early stages and may or may not be stable > (ACPI is a pretty complex way of approaching the problem - it involves > things like having the BIOS provide an interpreted language the OS can > use to invoke hardware frobbing stuff). > I just got a notebook with a PIII-M (intel's latest mobile chip) and all I can get acpi to do for me is turn it off on powerdown. It won't even show me battery status, because it thinks there are no batteries. I did notice however that when I booted off of the battery once that /proc/cpuinfo was reporting a 730MHz chip instead of 1GHz, but when I plugged in the AC, it didn't increase.
Hopefully, we'll get better acpi by 2.4.20.
