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Date: Sun, 13 Nov 2005 09:56:45 +0100
From: Luk van den Borne <luktheluckyboy@gmail.com>
To: Miles Keaton <mileskeaton@gmail.com>
In-Reply-To: <59b2d39b0511120800k781ac88bj5f79a75dd78f790b@mail.gmail.com>
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References: <59b2d39b0511111806l63c83504xc9858b31faab3d1d@mail.gmail.com>
	<4375D02C.3080401@alvorlig.dk>
	<59b2d39b0511120800k781ac88bj5f79a75dd78f790b@mail.gmail.com>
Cc: "J. Martin Petersen" <jmp.lists@alvorlig.dk>,
	FreeBSD-questions <freebsd-questions@freebsd.org>
Subject: Re: FreeBSD 6 on Centrino laptop : how to prolong battery life with
	cpufreq (like est and estctrl did)
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2005/11/12, Miles Keaton <mileskeaton@gmail.com>:
> > Miles Keaton wrote:
> > > I'm happily using FreeBSD 6 on a Centrino laptop, but wondering if
> > > anyone can explain ("for dummies") how to use the new cpufreq +
> > > SpeedStep to throttle-down my CPU usage and extend battery life - the
> > > way that sysutils/est and sysutils/estctrl used to do in FreeBSD 5?
> On 11/12/05, J. Martin Petersen <jmp.lists@alvorlig.dk> wrote:
> > I'm using powerd, it's working great.
>
>
> Any advice on usage?  I tried it and got this error:
>
> # powerd -a minimum
> powerd: lookup freq: No such file or directory
You should load cpufreq in your loader.conf. I believe cpufreq is the
backend that FreeBSD uses for (dynamic) CPU scaling.
cpufreq_load=3D"YES"

rc.conf:
powerd_enable=3D"YES"
powerd_flags=3D"-a adaptive -b adaptive -n adaptive"

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