From owner-freebsd-current Wed Jan 10 7:44:54 2001 Delivered-To: freebsd-current@freebsd.org Received: from hda.hda.com (host65.hda.com [63.104.68.65]) by hub.freebsd.org (Postfix) with ESMTP id 1A2FD37B402; Wed, 10 Jan 2001 07:44:33 -0800 (PST) Received: (from dufault@localhost) by hda.hda.com (8.11.1/8.11.1) id f0AFg8n15964; Wed, 10 Jan 2001 10:42:08 -0500 (EST) (envelope-from dufault) From: Peter Dufault Message-Id: <200101101542.f0AFg8n15964@hda.hda.com> Subject: Re: Fan speed control sony vaio lx800 slimtop In-Reply-To: <20010110235910A.iwasaki@jp.FreeBSD.org> from Mitsuru IWASAKI at "Jan 10, 2001 11:59:10 pm" To: Mitsuru IWASAKI Date: Wed, 10 Jan 2001 10:41:31 -0500 (EST) Cc: msmith@freebsd.org, current@freebsd.org, scottl@freebsd.org X-Mailer: ELM [version 2.4ME+ PL61 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > Note also that Scott Long (scottl@freebsd.org) is also working on this, > > you will want to check with him to work out where he's up to... > > OK, I intended to try acpi_thermal hacking for the next target, now > I can be a tester and feed back something for Scott's hack :-) Note that there are no \_TZ_ entries in that "vaiolx800.asl" dump that I submitted for the ACPI collection. I'm not sure where that collection is - I don't see it off www.jp.freebsd.org/acpi, if anyone wants to see that .asl file I can put it somewhere public. I also haven't found any "PNPxxxx" devices corresponding to an ACPI fan (I forget the exact number) during boot -v. Would I have to do anything special to see it? If anyone has any other ideas of what to do let me know - I'm wondering if throttling down the CPU turns down the fan. In the meantime I've made terrific progress by putting "dynamat" sound absorbing material on the bottom of the plastic drum-like base of the Vaio, it is quieter and now my desk doesn't vibrate when the fan is on high. (www.dynamat.com, new web site in progress) Next I'll open it up and put dynamat on the inside of the plastic - I assume most heat loss is by convection and this won't make much difference. Once I do get the fan throttling working I'll have a real quiet system. Peter -- Peter Dufault (dufault@hda.com) Realtime development, Machine control, HD Associates, Inc. Fail-Safe systems, Agency approval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message