From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262633AbVAPWbf (ORCPT ); Sun, 16 Jan 2005 17:31:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262642AbVAPWbe (ORCPT ); Sun, 16 Jan 2005 17:31:34 -0500 Received: from [195.110.122.101] ([195.110.122.101]:34275 "EHLO cadalboia.ferrara.linux.it") by vger.kernel.org with ESMTP id S262647AbVAPW2G (ORCPT ); Sun, 16 Jan 2005 17:28:06 -0500 From: Simone Piunno To: LM Sensors , LKML Subject: Re: 2.6.10-mm2: it87 sensor driver stops CPU fan Date: Sun, 16 Jan 2005 23:32:10 +0100 User-Agent: KMail/1.7.2 Cc: "Greg KH" , "Jonas Munsin" , djg@pdp8.net References: <200501151654.46412.pioppo@ferrara.linux.it> <20050115175545.743a39f9.khali@linux-fr.org> In-Reply-To: <20050115175545.743a39f9.khali@linux-fr.org> X-Key-URL: http://members.ferrara.linux.it/pioppo/mykey.asc X-Key-FP: 9C15F0D3E3093593AC952C92A0CD52B4860314FC X-Key-ID: 860314FC/C09E842C X-Message: GnuPG/PGP5 are welcome MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200501162332.14324.pioppo@ferrara.linux.it> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, While we're at it, the fan speed sensor reports an absurd speed when the fan is driven with very low but non-zero pwm values. For example, driving it with pwm=2 I get speeds over 50K rpms, while of course the fan is stopped (almost?). This could be just an hardware sensitivity problem in the sensor chip, or a false measure triggered by fan vibration, but maybe you know better. /Simone -- http://thisurlenablesemailtogetthroughoverzealousspamfilters.org