acpi problems and "stray irq6"

Nate Lawson nate at root.org
Wed Nov 10 17:47:24 PST 2004


Alexandre "Sunny" Kovalenko wrote:
> On Wed, 2004-11-10 at 13:54, Gordon Bergling wrote:
>>first sorry for cross posting. I wasn't sure where I should post these
>>questions. 
>>
>>I have a new notebook. Its a Fujitsu-Siemens Amilo A 7640. Hardware, 
>>if that matters, is an AMD Athlon XP 3000+, SiS (somewhat) Chipset 
>>and 512MB Ram.
>>
>>This notebook is running a recent 5-STABLE from a few minutes ago. The
>>bios version of the notebook should be the newest. Its dated on
>>09/17/2004.
>>
>>At first there is a problem regarding the speed managment of the cpu.
>>Normally and acpi managed cpu should be controlable of the
>>"hw.acpi.cpu.throttle_state" sysctl. This sysctl doesn't exist. Without
>>this capability the cpu is all the time running at ~ 800 MHz, which
>>makes build world not really fast. ;)
>>
>>Has anyone an idea how I could enable this feature?
>>
>>
> 
> I would have to believe that "throttle" only works on Pentium chips. 

No, throttling only works on chipsets that support it and export control 
over it to ACPI.  It's not as useful as real CPU control in that it just 
controls frequency duty cycle, not frequency and voltage combined.

-- 
Nate


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