Messages in this thread | | | Date | Tue, 22 May 2007 22:07:24 +0530 | From | "Dhaval Giani" <> | Subject | Re: Enabling power states for Core 2 Duo |
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> >>I'm probably missing something crucial here. So how do I enable power > >>states? I'm using 64-bit Gentoo. My mobo is Asus P5B Deluxe. Otherwise > >>ACPI works fine. > > > >The BIOS has to expose this support in ACPI, if it doesn't (which is often > >the case on desktop boards) you won't get any C-state support (well, except > >for C1 which is just the normal halt state). > > But unless I'm not mistaken, I don't have even the C1 state available. I > seem to have only C0 according to "active state". "Active state is the sleep > state currently used when the system is idle", isn't it? Here is the source: > > http://acpi.sourceforge.net/documentation/processor.html > > But are you saying that with most desktop mobos one doesn't usually have the > different power states available at all? So basically the only means to > conserve power is to scale the frequency? >
Please update your BIOS and try.
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