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Date: Thu, 8 Sep 2005 18:44:44 +0200
To: William Lam <antitoch@gmail.com>
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From: Bruno Ducrot <ducrot@poupinou.org>
Cc: freebsd-current@freebsd.org
Subject: Re: cpufreq & Pentium III-M
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On Thu, Sep 08, 2005 at 12:19:43PM -0400, William Lam wrote:
> Hi, I'm having some problems with cpu throttling on my Portege 2010 on
> -current. On or off AC the CPU is always at maximum clockrate.
> 
> dev.cpu.0.%desc: ACPI CPU
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: 866
> dev.cpu.0.freq_levels: 866/22000 400/9800
> 
> Trying to set dev.cpu.0.freq to 400 only displays this on the console:
> 
> acpi_perf0: Px transition to 400 failed
> acpi_perf0: set freq failed, err 6

I doubt acpi_perf can handle this processor indeed, but I may be wrong.
Could you please send me the output from acpidump -dt?

> Disabling acpi_perf with hint.acpi_perf.0.disabled=1 dosn't have any effect.

What about hint.acpi_perf.0.disabled="1"?

Cheers,

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.