From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754229Ab1KCNur (ORCPT ); Thu, 3 Nov 2011 09:50:47 -0400 Received: from imr3.ericy.com ([198.24.6.13]:36453 "EHLO imr3.ericy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752067Ab1KCNuq (ORCPT ); Thu, 3 Nov 2011 09:50:46 -0400 Date: Thu, 3 Nov 2011 06:49:02 -0700 From: Guenter Roeck To: Lars =?iso-8859-1?Q?Nood=E9n?= CC: "linux-kernel@vger.kernel.org" , "lm-sensors@lm-sensors.org" , Henrik Rydberg Subject: Re: Hardware running hot and without the fan Message-ID: <20111103134902.GA26121@ericsson.com> References: <4EB1108F.6070009@gmail.com> <20111103020301.GA22333@ericsson.com> <4EB250FD.3070000@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4EB250FD.3070000@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 03, 2011 at 04:29:49AM -0400, Lars Noodén wrote: > 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. > Does it report any fans ? If it does, can you try setting the fan speed ? Thanks, Guenter