cpufreq & Pentium III-M

Bruno Ducrot ducrot at poupinou.org
Thu Sep 8 09:44:54 PDT 2005

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"?


Bruno Ducrot

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

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