From owner-freebsd-current@FreeBSD.ORG Sat Jan 22 20:53:45 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8086716A4CE; Sat, 22 Jan 2005 20:53:45 +0000 (GMT) Received: from xorpc.icir.org (xorpc.icir.org [192.150.187.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 61C9643D41; Sat, 22 Jan 2005 20:53:45 +0000 (GMT) (envelope-from rizzo@icir.org) Received: from xorpc.icir.org (localhost [127.0.0.1]) by xorpc.icir.org (8.12.11/8.12.8) with ESMTP id j0MKrjHp023932; Sat, 22 Jan 2005 12:53:45 -0800 (PST) (envelope-from rizzo@xorpc.icir.org) Received: (from rizzo@localhost) by xorpc.icir.org (8.12.11/8.12.3/Submit) id j0MKrj0d023931; Sat, 22 Jan 2005 12:53:45 -0800 (PST) (envelope-from rizzo) Date: Sat, 22 Jan 2005 12:53:45 -0800 From: Luigi Rizzo To: Robert Watson Message-ID: <20050122125345.B23672@xorpc.icir.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from rwatson@freebsd.org on Sat, Jan 22, 2005 at 08:44:39PM +0000 cc: current@freebsd.org Subject: Re: Notebook fan stuck on? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2005 20:53:45 -0000 On Sat, Jan 22, 2005 at 08:44:39PM +0000, Robert Watson wrote: > > I'm not sure when this began, but I noticed recently that, once my > notebook's fan gets turned on due to the temperature rising, it seems > never to get turned off. I'm not sure how to begin debugging this -- in Robert, i think it is because it was too warm in Cambridge last week; the GPS in the notebook thinks it is in britain and it is January, so it turns on the hidden x1.5 overclocking mode that CPU manufacturers have to perform well in benchmarks. This setting is not under control of ACPI, which indeed tries to cool down the CPU by turning the fan ON, and possibly throttling the clock (which however is faster than ACPI believes). ok just kidding :) luigi > particular, how to decide if it's because the notebook isn't cooling > properly (perhaps due to ACPI or hardware?) or if we're failing to turn it > back down against once it is cooled (perhaps also due to ACPI?). > Regardless, it actually has the effect of generating quite a bit more > noise, and using moderately more battery, so any pointers on where to > start looking for helpful. > > Thanks, > > Robert N M Watson > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"