From owner-freebsd-stable@FreeBSD.ORG Tue Jun 3 22:09:48 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 1D6E5106566C; Tue, 3 Jun 2008 22:09:48 +0000 (UTC) (envelope-from nakal@web.de) Received: from waldorf.cs.uni-dortmund.de (waldorf.cs.uni-dortmund.de [129.217.4.42]) by mx1.freebsd.org (Postfix) with ESMTP id 9EBB48FC0C; Tue, 3 Jun 2008 22:09:47 +0000 (UTC) (envelope-from nakal@web.de) Received: from postamt.cs.uni-dortmund.de (postamt [129.217.4.40]) by waldorf.cs.uni-dortmund.de with ESMTP id m53LldIO008119; Tue, 3 Jun 2008 23:47:39 +0200 (MEST) Received: from zelda.local (pD9EC3B09.dip0.t-ipconnect.de [217.236.59.9]) (authenticated bits=0) by postamt.cs.uni-dortmund.de (8.12.6/8.12.6) with ESMTP id m53LlbCm008943 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 3 Jun 2008 23:47:38 +0200 (MEST) Date: Tue, 3 Jun 2008 23:47:36 +0200 From: Martin To: freebsd-stable@FreeBSD.org Message-ID: <20080603234736.65737e6c@zelda.local> In-Reply-To: <20080603122218.GA69827@eos.sc1.parodius.com> References: <18501.12329.638264.761303@cs.wpi.edu> <20080603122218.GA69827@eos.sc1.parodius.com> Organization: Technische =?UTF-8?B?VW5pdmVyc2l0w6R0?= Dortmund X-Mailer: Claws Mail 3.4.0 (GTK+ 2.12.9; amd64-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: koitsu@FreeBSD.org Subject: Re: Lenovo Thinkpad t61p and FreeBSD? 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: Tue, 03 Jun 2008 22:09:48 -0000 On Tue, 3 Jun 2008 05:22:18 -0700 Jeremy Chadwick wrote: > Based on my experiences with my workplace-provided T60p, it's safe to > say I'll never recommend a Lenovo product. The temperatures of these > laptops are absolutely insane, supported by an incredibly loud fan. > I'm not interested in a product that can have a GPU reaching > temperatures of almost 70C **while idling**. Hallo, I can confirm this. I've got a T60p Lenovo Thinkpad here. This laptop is very lazy with speeding up the fan, when using automatic fan settings. I've got CPU temperatures up to 101=C2=B0C here, while compiling world or ports. At this point the laptop powers off. The fan works. I checked it. The fan is far too slow, when setting it to highest level: dev.acpi_ibm.0.fan_speed: 3745 dev.acpi_ibm.0.fan_level: 7 dev.acpi_ibm.0.fan: 0 I'm not sure, but I think I've seen it at 4300 and almost 5000 rpm earlier at high temperatures around 90=C2=B0C. Today it always stays below 4000 rpm, even at 100=C2=B0C. Second problem is that the VGA sits under the same heat sink as the CPU. The GPU or chipset is constantly at 75=C2=B0C minimum, because FreeBSD-powerd does not adjust the voltage settings of the VGA and always runs it at full power. This heats up the CPU additionally. I have a small script that automatically adapts the CPU speed, so it stays below 75=C2=B0C while compiling big things. Optionally one can set the CPU speed to 1667MHz manually while compiling. --=20 Martin