From owner-freebsd-acpi@FreeBSD.ORG Tue Apr 27 12:32:23 2004 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 24DEA16A4CE for ; Tue, 27 Apr 2004 12:32:23 -0700 (PDT) Received: from mailbox.univie.ac.at (mail.univie.ac.at [131.130.1.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 61D1943D5E for ; Tue, 27 Apr 2004 12:32:22 -0700 (PDT) (envelope-from le@FreeBSD.org) Received: from wireless (adslle.cc.univie.ac.at [131.130.102.11]) i3RJVnEW930024; Tue, 27 Apr 2004 21:31:50 +0200 Date: Tue, 27 Apr 2004 21:31:48 +0200 (CEST) From: Lukas Ertl To: Jeffrey Katcher In-Reply-To: <20040427155220.45753.qmail@web41114.mail.yahoo.com> Message-ID: <20040427212944.O652@korben> References: <20040427155220.45753.qmail@web41114.mail.yahoo.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-DCC-ZID-Univie-Metrics: imap 4243; Body=0 Fuz1=0 Fuz2=0 cc: freebsd-acpi@FreeBSD.org Subject: Re: Fan Control Success on IBM T40? X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Apr 2004 19:32:23 -0000 On Tue, 27 Apr 2004, Jeffrey Katcher wrote: > I've been playing with adaptive power management for my Thinkpad T40, running > an up-to-date current with ACPI. While I can cycle the clock on demand, I'm > noticing that once the fan comes on, it stays on. You probably can't do anything against that, I'm seeing it too on my T40. There are many discussions about the "T40 fan problem" in newsgroups, seems like IBM botched this model. I've heard from inofficial sources that it's a problem with the on-board temperature sensor, so maybe you can solve this by replacing the system board. cheers, le -- Lukas Ertl http://mailbox.univie.ac.at/~le/ le@FreeBSD.org http://people.freebsd.org/~le/