[ltp] Question on APM vs ACPI

Satish Balay linux-thinkpad@linux-thinkpad.org
Tue, 7 Dec 2004 01:04:44 -0600 (CST)


On Tue, 7 Dec 2004, Bob Alexander wrote:

> From the help I have received from this list and reading around I have
> understood that:
> 
> 1) APM is much better when suspending in low battery drainage
> 2) ACPI is much better on CPU throttling (ala SpeedStep) when running on
> battery

Well speedstep works irrespective of APM/ACPI - but don't know if ACPI
saves more power in the lower freq state.

Satish