From owner-freebsd-mobile Thu Feb 8 16:46:28 2001 Delivered-To: freebsd-mobile@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id 0D47837B503 for ; Thu, 8 Feb 2001 16:46:04 -0800 (PST) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id A04DF6A90D; Fri, 9 Feb 2001 11:15:48 +1030 (CST) Date: Fri, 9 Feb 2001 11:15:48 +1030 From: Greg Lehey To: "Matt W." Cc: misc@openbsd.org, mobile@FreeBSD.org Subject: Inspiron fan problems (was: laptop cpu fan) Message-ID: <20010209111548.B16260@wantadilla.lemis.com> References: <3A8237D1.1196D4B9@egatobas.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3A8237D1.1196D4B9@egatobas.org>; from kmx@egatobas.org on Thu, Feb 08, 2001 at 12:08:17AM -0600 Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org [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