powernow not working on AMD Athlon XP Mobile

Sepherosa Ziehau sepherosa at gmail.com
Mon Sep 12 04:28:45 PDT 2011


On Sun, Sep 11, 2011 at 6:46 PM, Maurizio Lombardi
<m.lombardi85 at gmail.com> wrote:
>>
>> Under most of the cases, powernow kernel module is outdated, you
>> should use acpi p-states if possible.
>> It looks like acpi p-states do exist, but lacking CPU driver.  Could
>> you post the dmesg?
>
> dmesg attached, thanks for your quick answer.

Try following patch:
http://leaf.dragonflybsd.org/~sephe/pstate_machdep.c.diff

See whether following sysctl appears:
hw.acpi.cpu.px_dom0.select

>
> --
> --------------------
> Maurizio Lombardi
>



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