From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Thermal managment broken Date: Wed, 18 Sep 2002 19:00:47 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20020918190047.C921@brodo.de> References: <20020916163600.GA11617@elf.ucw.cz> <20020916225518.B2247@brodo.de> <20020918102555.GB18221@atrey.karlin.mff.cuni.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <20020918102555.GB18221-jyMamyUUXNJG4ohzP4jBZS1Fcj925eT/@public.gmane.org>; from pavel-+ZI9xUNit7I@public.gmane.org on Wed, Sep 18, 2002 at 12:25:55PM +0200 Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Pavel Machek Cc: Dominik Brodowski , Andrew Grover , ACPI mailing list List-Id: linux-acpi@vger.kernel.org Hi Pavel, On Wed, Sep 18, 2002 at 12:25:55PM +0200, Pavel Machek wrote: > > Additionally, it might be better to specify a "starting" and > > "stopping" trip point - so that you don't have a fan going > > on-off-on-off-on-off repeatedly. (IIRC someone complained about this = a few > > months ago on this list). But even without this "feature", I'd like t= o see > > the user-specified trip points in the acpi patch. >=20 > I believe this is orthogonal. You need to do two thresholds even > without user help, so it needs to be solved some other way. IIRC, that's something the DSDT has to provide - the trip points should change (right in the DSDT) when the fan is turned on or off, respectively. Many DSDTs don't do this, and this is an annoyance, but except some basic "sanity checking" (for example, having a minimum fan-on period of x seconds), such a policy interface should either provide such a two-thresh= old policy itself (turn-off=3D=3Duser-value - 5=B0), or get direct user-input= for it. Dominik ------------------------------------------------------- This SF.NET email is sponsored by: AMD - Your access to the experts on Hammer Technology! Open Source & Linux Developers, register now for the AMD Developer Symposium. Code: EX8664 http://www.developwithamd.com/developerlab