From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932757Ab1KGRSu (ORCPT ); Mon, 7 Nov 2011 12:18:50 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:47985 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755119Ab1KGRSt (ORCPT ); Mon, 7 Nov 2011 12:18:49 -0500 Date: Mon, 7 Nov 2011 17:18:45 +0000 From: Matthew Garrett To: Lars =?iso-8859-1?Q?Nood=E9n?= Cc: Henrik Rydberg , guenter.roeck@ericsson.com, "linux-kernel@vger.kernel.org" , "lm-sensors@lm-sensors.org" Subject: Re: Hardware running hot and without the fan Message-ID: <20111107171845.GB23257@srcf.ucam.org> References: <4EB1108F.6070009@gmail.com> <20111103020301.GA22333@ericsson.com> <4EB250FD.3070000@gmail.com> <20111103134902.GA26121@ericsson.com> <4EB2A46B.8080600@gmail.com> <1320332801.2309.60.camel@groeck-laptop> <4EB2B0FD.309@gmail.com> <20111103174635.GA12229@polaris.bitmath.org> <4EB3BE15.3070009@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4EB3BE15.3070009@gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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@srcf.ucam.org