throttling cpu speed to run cooler

Hanspeter Roth hampi at rootshell.be
Mon Nov 1 03:06:52 PST 2004


  On Oct 31 at 21:42, jason spoke:

> This is what you could do to check your info.
> 
> $ sysctl -a |grep thermal
> hw.acpi.thermal.min_runtime: 0
> hw.acpi.thermal.polling_rate: 10
> hw.acpi.thermal.tz0.temperature: 2950
[...]
> hw.acpi.thermal.tz0._ACx: 3732 -1 -1 -1 -1 -1 -1 -1 -1 -1
> $

I have some acpi stuff but no thermal:

hw.acpi.supported_sleep_state: S3 S4 S5
hw.acpi.power_button_state: S5
[...]
> 
> If there is no thermal you may not have support for it.  I read on the 
> list where centrino now has full powernow(or something) support on BSD.  
> Also search the acpi list for your board and/or bios.  There are some 
> black listed products because acpi is broke on them.  I seem to remember 

Which balcklist do you mean? This one?
http://acpi.sourceforge.net/documentation/blacklist.html

One is an HP pavilion zt3030AE and the other one is a Gigabyte
7VT600P-RZ which don't seem to be listed here.

> some asus products mentioned.  Read the handbook about fixing or forcing 
> acpi to load too if it is note black listed. 
> 
> Acpi is on in the bios and being loaded as a module right?

`kldstat` shows 'acpi.ko' and `sysctl hw.acpi` shows some stuff. So
the acpi module should be loaded.

-Hanspeter


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