-=| Hans-J. Ullrich, Tue, May 11, 2010 at 07:33:29PM +0200 |=- > My question: What is the S.H.E. for?
"Super Hybrid Engine" is fancy speak for extra power consumption management. > Is S.H.E. a hardware based solution? Sort of. It can be controlled by software. > As I am using "powerdevil" in KDE, how does S.H.E. work with powerdevil, > exactly, which profile take precedenc: the powerdevil one, or that of S.H.E? SHE is independent from any other power management you use (e.g. cpu frequency scaling). > I suppose, S.H.E. is always available, for example, if Iam not > running KDE, but my second favourite windowmanager LXDE, isn't it? It is. > If there is a technical explantion, how S.H.E. is working in linux, > I will be happy, to read it. From what I have seen, you write a magic numer to a special I/O register and the system bus/memory frequency/voltage is adjusted (over/under-clocked). See the related code in eeepc-acpi-scripts for high-level details. If I am not mistaken, the default configuration underclocks the system when running on battery, and overclocks it when running on A/C power. Hopefuly this answers some of your questions. ASUS aren't particulary generous on details.
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