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Date: Wed, 01 Apr 2009 22:55:48 -0400
From: Pierre-Luc Drouin <pldrouin@pldrouin.net>
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To: Nate Lawson <nate@root.org>
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Cc: freebsd-acpi@freebsd.org
Subject: Re: Wrong dev.cpu.0.freq_levels values
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Hi,

I understand that there are more levels than there used to be because of 
the new driver, but why is the maximum 1500 now instead of 2000? Doesn't 
it mean that the maximum frequency set by powerd is now 1500 MHz instead 
of 2000 GHz?

Thanks!

Nate Lawson wrote:
> Pierre-Luc Drouin wrote:
>   
>> Hello,
>>
>> I have noticed that FreeBSD gets the wrong CPU frequency levels for my
>> Pentium M 2GHz. It used to work correctly with older versions of
>> FreeBSD, but I noticed that this was not working properly when I
>> installed 7.1 and this is still not working with -stable:
>>
>>     
>
>   
>> dev.cpu.0.freq: 1500
>> dev.cpu.0.freq_levels: 1500/-1 1312/-1 1200/-1 1050/-1 1000/-1 875/-1
>> 800/-1 700/-1 600/-1 525/-1 450/-1 375/-1 300/-1 225/-1 150/-1 75/-1
>> dev.est.0.%desc: Enhanced SpeedStep Frequency Control
>> dev.est.0.freq_settings: 1500/-1 1200/-1 1000/-1 800/-1 600/-1
>>
>> Is there a way to fix this?
>>     
>
> There's nothing wrong. You just got more levels using p4tcc (another
> cpufreq device). So use it as-is, or disable the p4tcc driver and
> acpi_throttle drivers.
>
>