From owner-freebsd-mobile Thu Feb 8 16:49:26 2001 Delivered-To: freebsd-mobile@freebsd.org Received: from p51.nitrous.net (p51.nitrous.net [207.138.102.138]) by hub.freebsd.org (Postfix) with ESMTP id 5E03F37B401 for ; Thu, 8 Feb 2001 16:49:09 -0800 (PST) Received: (from denver@localhost) by p51.nitrous.net (8.11.1/Booger-Flingerv1.2.89) id f190j9r49893; Thu, 8 Feb 2001 17:45:09 -0700 (MST) Date: Thu, 8 Feb 2001 17:45:09 -0700 From: Denver Maddux To: Greg Lehey Cc: "Matt W." , misc@openbsd.org, mobile@FreeBSD.ORG Subject: Re: Inspiron fan problems (was: laptop cpu fan) Message-ID: <20010208174509.D47573@nitrous.net> References: <3A8237D1.1196D4B9@egatobas.org> <20010209111548.B16260@wantadilla.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010209111548.B16260@wantadilla.lemis.com>; from grog@lemis.com on Fri, Feb 09, 2001 at 11:15:48AM +1030 Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I've got the same problems running 4.2-STABLE on a Dell Inspiron 5000 and a Dell Latitude C800. -D It looks like on 02/09/01 at 11:15, Greg Lehey may have said: > [originally posted to misc@OpenBSD.org; adding mobile@FreeBSD.org] > > On Thursday, 8 February 2001 at 0:08:17 -0600, Matt W. wrote: > > I've got a Dell Inspirion 5000e and was wondering if there is anyway to > > get obsd 2.8 to run a nop loop in the background when the processor > > isn't being used. The reason i ask this is the cpu fan is on constantly > > even when nothing is happening. > > I've noticed a similar problem with my Inspiron 7500 running FreeBSD. > I think it's a bug in the OS. What I'm observing is that after > booting the fan will be off, but if at some time the system gets hot > enough to turn on the fan, it never goes off again. APM does work on > the 7500, and if I suspend and resume, the fan goes on immediately on > resume, even though the system is cool. The only way to stop it is to > reboot. Has anybody else noticed this? > > > The only way i know how to handle this is to run a program like > > "rain" that is just a simple nop loop > > when nothing is happening. So is there a program like rain for obsd? > > A NOP loop won't make the processor run any cooler. A HLT instruction > will, and that's what FreeBSD does, at any rate. I'd be surprised if > OpenBSD didn't do the same thing. > > Greg > -- > Finger grog@lemis.com for PGP public key > See complete headers for address and phone numbers > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-mobile" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message