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Date:      Thu, 8 Feb 2001 17:45:09 -0700
From:      Denver Maddux <denver@nitrous.net>
To:        Greg Lehey <grog@lemis.com>
Cc:        "Matt W." <kmx@egatobas.org>, misc@openbsd.org, mobile@FreeBSD.ORG
Subject:   Re: Inspiron fan problems (was: laptop cpu fan)
Message-ID:  <20010208174509.D47573@nitrous.net>
In-Reply-To: <20010209111548.B16260@wantadilla.lemis.com>; from grog@lemis.com on Fri, Feb 09, 2001 at 11:15:48AM %2B1030
References:  <3A8237D1.1196D4B9@egatobas.org> <20010209111548.B16260@wantadilla.lemis.com>

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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" <some crappy windows program> 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
> 
> 
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