Re: Hardware running hot and without the fan

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On 11/03/2011 04:03 AM, Guenter Roeck wrote:
> From LKML:
> 
> On Wed, Nov 02, 2011 at 05:42:39AM -0400, Lars Noodén wrote:
>> There seem to be two problems here, one is that the hardware is 
>> getting WAY too hot, another is that the fan is not turning on when
>> the hardware gets too hot.
>> 
>> $ uname -a Linux xubuntu 3.1.0-999-generic #201110270406 SMP Thu 
>> Oct 27 08:07:41 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
>> 
>> I've reported the problem to Ubuntu 
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593 and the
>> suggestion there was to report it upstream.
>> 
>> On the notebook computer, parts become very hot to the touch while 
>> running Ubuntu, but the fan does not run even after it gets hot. 
>> When I boot back to OS X, the fan kicks in and runs until the 
>> computer returns to being cool to the touch.  Similar for the 
>> desktop, though I must follow the temperature with 
>> /usr/bin/sensors.
>> 
>> The notebook is a MacBookPro8,2 and the desktop is a Macmini3,1
>> 
>> What metrics do I need to collect to help fix the problem?  I've 
>> already reported the problem to Ubuntu[2] and the recommendation 
>> was to try reporting upstream.
>> 
>> Please CC me in the replies. /Lars
>> 
>> [1] http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/
>> 
>> [2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593
> 
> I see applesmc: : read arg fail in the dmesg log. No idea what that 
> means. Maybe the driver maintainer or someone else on the lm-sensors
>  mailing list can help.
> 
> Not sure I understand your comment about having to follow the output
>  of the sensors command. Can you clarify ?

That's to track the temperature manually.

> Also, do you get any output from the sensors command on the notebook?
> Thanks, Guenter

Yes.  It claims to have 24 temperature sensors.

/Lars



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