linux-kernel - Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

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Message-ID: <46129E7D.60103@goop.org>
Date:	Tue, 03 Apr 2007 11:35:41 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Henrique de Moraes Holschuh <hmh@....eng.br>
CC:	Alexey Starikovskiy <aystarik@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

Henrique de Moraes Holschuh wrote:
> Well, send me the DSDT and dmidecode output (mask off the UUID and serial
> numbers), and I will be able to say more.
>   

Attached.  Is there some tool for decoding the DSDT?

>> ezr:pts/1; cat /proc/acpi/ibm/thermal
>> temperatures:   72 55 -128 65 40 -128 35 -128 51 53 -128 -128 -128 -128
>> -128 -128
>>     
>
> This is a highly unusual output for thinkpads, but might be the expected one
> for your X60, the X-series has always been a bit weird.  I'd higly suggest
> asking for X60 thermal data from other X60 owners on the linux-thinkpad ML.
> Make sure to state your X60 model number, and to request that everyone does
> the same.
>   

How would you expect it to look?  I did some non-conclusive tests under
Windows, and I'm beginning to get the feeling that there is actually a
cooling problem with the hardware.

> Yes, if all sensors are working fine.  That said, people override the EC fan
> control all the time, because it seems not to be doing what people want.
> Thinkwiki has more on this, and you want to set your fan to level 7 when
> doing CPU-intensive work for now, since you are experiencing some sort of
> trouble anyway...
>   

It doesn't seem to help.  When its failing to control cooling (temp
creeps towards 100C while under load), its going at ~3700RPM, which is
about what level 7 does.

What's a typical max RPM?  I'm getting the impression that there's
either a thermal coupling problem between the CPU and its heatsink, or a
fan problem.

    J


View attachment "dmi.txt" of type "text/plain" (13254 bytes)

Download attachment "dsdt.bin" of type "application/octet-stream" (52982 bytes)