From owner-freebsd-stable@FreeBSD.ORG Mon Aug 10 22:55:02 2009 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3C1091065670 for ; Mon, 10 Aug 2009 22:55:02 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr1.xs4all.nl (smtp-vbr1.xs4all.nl [194.109.24.21]) by mx1.freebsd.org (Postfix) with ESMTP id ABCDB8FC1F for ; Mon, 10 Aug 2009 22:55:01 +0000 (UTC) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr1.xs4all.nl (8.13.8/8.13.8) with ESMTP id n7AMdBuk068941; Tue, 11 Aug 2009 00:39:11 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 9A037BA8D; Tue, 11 Aug 2009 00:39:11 +0200 (CEST) Date: Tue, 11 Aug 2009 00:39:11 +0200 From: Roland Smith To: Christian Walther Message-ID: <20090810223911.GA60489@slackbox.xs4all.nl> References: <14989d6e0908101453i635bbf8fhf26094c3ad896c9c@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="C7zPtVaVf+AK4Oqc" Content-Disposition: inline In-Reply-To: <14989d6e0908101453i635bbf8fhf26094c3ad896c9c@mail.gmail.com> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: stable@freebsd.org Subject: Re: Problem with IBM Thinkpad T30 shutting down due to high temperatures 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: Mon, 10 Aug 2009 22:55:02 -0000 --C7zPtVaVf+AK4Oqc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 10, 2009 at 11:53:10PM +0200, Christian Walther wrote: > Hello list, >=20 > for some time now my T30 shuts down due to temperatures exceeding the > safe limit of 92 degrees celcius. > Regardless to say that a 2GHz pentium4m powers the machine, and these > chips are "well known" for high temperatures. > But I'm unable to do anything that causes high load on the laptop: > Building world or complex ports makes the system reach the limit > within minutes. A few days ago I configured xcompmgr, which even seems > to make the problem whorse (yes, composite extension is enabled). > What I don't know is if this is a hardware error, or something caused > by the kernel. I wrote a small script to monitor dev.acpi_ibm.0.fan > dev.acpi_ibm.0.fan_level, hw.acpi.thermal.tz0.temperature and > dev.cpu.0.freq, and it sometimes appears that the temperature of the > CPU rises, but the kernel doesn't decrease the clock in time. If available, you can use acpi_thermal(4) to set the temperatures at which atcive cooling engaves. Look for the sysctl 'hw.acpi.thermal.tz%d._ACx', wh= ere %d is the core number and x is the cooling level. Or set the level manually with 'hw.acpi.thermal.tz%d.active'. Read the acpi_thermal manpage for more details. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --C7zPtVaVf+AK4Oqc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkqAoY8ACgkQEnfvsMMhpyV09wCfRBIlC7tNyUBGVci9xDVbmSjH AG8An0Dm4uFixnyOx8Put0ljUnfWq2Vz =N55i -----END PGP SIGNATURE----- --C7zPtVaVf+AK4Oqc--