From owner-freebsd-stable@FreeBSD.ORG Sun Dec 21 11:04:38 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E46C11065679 for ; Sun, 21 Dec 2008 11:04:38 +0000 (UTC) (envelope-from nakal@web.de) Received: from fmmailgate03.web.de (fmmailgate03.web.de [217.72.192.234]) by mx1.freebsd.org (Postfix) with ESMTP id 79B6A8FC0C for ; Sun, 21 Dec 2008 11:04:31 +0000 (UTC) (envelope-from nakal@web.de) Received: from smtp05.web.de (fmsmtp05.dlan.cinetic.de [172.20.4.166]) by fmmailgate03.web.de (Postfix) with ESMTP id D8EF0F5AA215; Sun, 21 Dec 2008 12:04:29 +0100 (CET) Received: from [217.236.25.40] (helo=zelda.local) by smtp05.web.de with asmtp (TLSv1:AES256-SHA:256) (WEB.DE 4.110 #273) id 1LEM6n-00029a-00; Sun, 21 Dec 2008 12:04:29 +0100 Date: Sun, 21 Dec 2008 12:04:27 +0100 From: Martin To: Nathan Lay Message-ID: <20081221120427.2dfde4b1@zelda.local> In-Reply-To: <494DDA1B.6050206@comcast.net> References: <494DDA1B.6050206@comcast.net> X-Mailer: Claws Mail 3.6.0 (GTK+ 2.12.11; amd64-portbld-freebsd7.1) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: nakal@web.de X-Sender: nakal@web.de X-Provags-ID: V01U2FsdGVkX19+81Q/qBPQhr1/Bw6MSJywtKaNihjJDEcb6mqa H88g8s3mAJ+D5hW/mwHMydBYEauvWppbZ8qeAuVV0xGxMNGNtR 5vMJcNZt8= Cc: freebsd-stable Subject: Re: Very serious cooling issues CURRENT/STABLE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Dec 2008 11:04:39 -0000 Am Sun, 21 Dec 2008 00:54:35 -0500 schrieb Nathan Lay : > Hi list(s) > Early in the year I noticed CURRENT failed to cool my frankenstein=20 > Thinkpad T40 (built from T40/40p parts) under load. The system would=20 > shut down from critically high temperatures while building a port. I=20 > did nothing special with ACPI. I thought nothing of it since, after=20 > all, I rebuilt a broken T40 from T40p parts. Today, however, I > noticed that a very recent STABLE build failed to keep my T43 cool > while building ports. It reached temperatures of 97, 98, 99C. Hallo Nathan, I can confirm this on a T60p. My notebooks shuts down since I use 7.0 at 101=C2=B0C. I have written a script that throttles the CPU if it gets above 75=C2=B0C. I have to use it when I'm building world or ports. Btw, I have reported the problem here a some time ago [1]. I have received some feedback that IBM/Lenovo uses wrong cooling strategy placing the CPU and the VGA under one single cooled surface and using too much thermal grease. On the other hand I have also emphasized that the fan should be able to have about 800rpm more at the temperature of 80=C2=B0C, but this has been ignored so far. This is why I have never had any problems running "the other common operating systems" and I have put them under heavy load. They don't exceed 85=C2=B0C. > It > used to reach a max temperature of 80C while building a port (idling > temperature is ~ 45C). It behaved normally from 5.3 all the way > through 7.0. To remedy both issues, I had to underclock the > processor (via dev.cpu) and force the fan to its highest (I'm running > 533MHz shy of the processor's full potential, with a fan level of 7 > to keep the temperature at ~75C). I have one further hint for you. The VGA is running very hot on FreeBSD (~75=C2=B0C when idle), because it is not able to throttle the GPU and its voltage. Maybe you've had a working setup for your GPU before and you even did not notice? Did you change your Xorg drivers? > I've always suspected FreeBSD's > ACPI didn't work properly on Thinkpad T series laptops (I have T40, > T41, T42 and T43) as it could never fully use the fan (Windows XP can > rev the fan far higher than acpi_ibm's level 7). Between STABLE and > CURRENT...something seems very wrong. These systems never had > cooling issues with FreeBSD before. The fan is running definitely too slow. On my system, too. Thanks, Martin References: [1] http://lists.freebsd.org/pipermail/freebsd-stable/2008-June/042812.html