linux-kernel - Re: Hardware running hot and without the fan

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Message-ID: <20111107171845.GB23257@srcf.ucam.org>
Date:	Mon, 7 Nov 2011 17:18:45 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Lars Noodén <lars.nooden@...il.com>
Cc:	Henrik Rydberg <rydberg@...omail.se>, guenter.roeck@...csson.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>
Subject: Re: Hardware running hot and without the fan

On Fri, Nov 04, 2011 at 12:27:33PM +0200, Lars Noodén wrote:

> I think there are two problems.  One is the GPU or some other part
> running hot.  The other is the sensors/fans issue: the fans don't turn
> on even when the system is hot.  Both problems are evident on two
> different models of hardware, the notebook is a MacBookPro8,2 and the
> desktop is a Macmini3,1.

Fan control is under the control of the SMC. If fans aren't working then 
either we're supposed to be feeding data into the SMC or there's a 
hardware problem of some description.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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