Re: [ACPI] Acer Aspire 1700

[Julio Merino <jmmv%NetBSD.org@localhost>]

On Tue, Apr 6, 2010 at 12:33 PM, BERTRAND Joel
<joel.bertrand%systella.fr@localhost> wrote:
> Jukka Ruohonen a écrit :
>>
>> On Tue, Apr 06, 2010 at 11:53:08AM +0200, BERTRAND Joel wrote:
>>>
>>> As it worked fine with Solaris, I suppose that this control is done
>>> by operating system, but I don't understand why CPU fan does not start
>>> when
>>> ACPI is disabled. Is there any workaround or patch ? I haven't found any
>>> information.
>>
>> On some systems the fan is controlled by the operating system via ACPI.
>> Consequently, if the latter is disabled, it is possible that the fan does
>> not work. The temperature threshold for "active cooling" by a fan is
>> generally imposed by the firmware.
>>
>> The question is: why you need to disable ACPI?
>
>        I have tried to disable ACPI to check if fan speed is controlled by
> ACPI. As CPU is to hot, my first idea was to force fan action.

Why do you think the CPU is too hot?  I've seen the CPU in several
MacBooks reach 75C+ frequently, and the fans don't kick in until then.

-- 
Julio Merino