Acer Laptop overheating with ACPI error that I don't understand.

[Edwin L. Culp W.]

On Tue, Jul 14, 2009 at 7:32 PM, Chuck Swiger <cswiger at mac.com> wrote:

> Hi--
>
> On Jul 14, 2009, at 4:54 PM, Edwin L. Culp W. wrote:
>
>> I am having overheating problems with my Acer Aspire laptop.
>> # uname -a
>> FreeBSD ed.local.net.mx 8.0-BETA1 FreeBSD 8.0-BETA1 #256: Thu Jul  9
>> 07:05:20 CDT 2009     root at ed.local.net.mx:
>> /usr/obj/usr/src/sys/ENCONTACTO
>> i386
>>
>> I've been having this problem for several months and compensating by
>> reducing dev.cpu.0.freq from 1900 to 1200 and 800 in warm offices.
>>
>
> Presumably you should be talking to Acer-- if it overheats badly in normal
> operation, there's probably something wrong with a fan, temperature sensor,
> or something.
>
>  The errors I'm seeing in the log files are:
>>
>> +acpi_ec0: EcRead: failed waiting to get data
>> +ACPI Exception: AE_NO_HARDWARE_RESPONSE, Returned by Handler for
>> [EmbeddedControl] 20090521 evregion-531
>> +ACPI Error (psparse-0633): Method parse/execution failed
>> [\\_TZ_.THRM._TMP]
>> (Node 0xc4e75960), AE_NO_HARDWARE_RESPONSE
>>
>> I'm afraid that I don't understand them.
>>
>
> acpi_ec0 is the embedded controller handling ACPI events.  It should be
> responsible for adjusting active cooling measures like fan speed in response
> to temperature changes.  See "man acpi_thermal"....


Gracias, Chuck.  That  is what I needed to  be  able to understand a bit
more about ACPI.

Thanks,

ed

>
>
> Regards,
> --
> -Chuck
>
>