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

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Date:	Sun, 01 Apr 2007 21:53:38 -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:
> On Sun, 01 Apr 2007, Jeremy Fitzhardinge wrote:
>   
>> control problems.  Perhaps the ambient temperature was lower when I
>> reported success.
>>     
>
> You can use ibm-acpi to properly track your thinkpad thermal sensors, load
> it with the "experimental=1" parameter, and look at what gets exported at
> /proc/acpi/ibm/thermal.
>   

Interesting.  The first number corresponds with the ACPI THM0
temperature, but I can't see anything corresponding to THM1.  Is there
something that documents what all the temperatures are measuring in an
X60?  Thinkwiki doesn't seem to have any info.

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

> You can also use /proc/acpi/ibm/fan to check the fan's state.  And use the
> "level 7" /proc/acpi/ibm/fan command to set the emergency cooling level, and
> "level disengaged" command to set the really badass fan cooling level (might
> damage your hardware, we don't know if it is safe and IBM/Lenovo isn't
> talking).
>   

It's set to auto.  Presumably that means its tied into the temperature
sensors and will be able to keep the temp under control...

    J

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