From owner-freebsd-acpi@FreeBSD.ORG Mon Nov 1 10:53:11 2010 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9773F1065672 for ; Mon, 1 Nov 2010 10:53:11 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id DF0048FC12 for ; Mon, 1 Nov 2010 10:53:10 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id MAA18672; Mon, 01 Nov 2010 12:53:04 +0200 (EET) (envelope-from avg@icyb.net.ua) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1PCs0e-0002sQ-H0; Mon, 01 Nov 2010 12:53:04 +0200 Message-ID: <4CCE9C0F.6060907@icyb.net.ua> Date: Mon, 01 Nov 2010 12:53:03 +0200 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101029 Lightning/1.0b2 Thunderbird/3.1.6 MIME-Version: 1.0 To: jt@xoasis.de References: <201011011052.11084.jt@xoasis.de> In-Reply-To: <201011011052.11084.jt@xoasis.de> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-acpi@freebsd.org Subject: Re: est CPU support X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Nov 2010 10:53:11 -0000 on 01/11/2010 11:52 Joerg Traeger said the following: > Hi, > > I have got several mainboards with CPUs which appear not to be > supportet by est. An error exists: > > (examle of somewhat older Intel DG45FC with DualCore E5200 and latest BIOS) > > est0: on cpu0 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 61a4c1f06004c1f > device_attach: est0 attach returned 6 <---------- Do you have ACPI enabled? > p4tcc0: on cpu0 > [...] > est1: on cpu1 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 61a4c1f06004c1f > device_attach: est1 attach returned 6 > p4tcc1: on cpu1 > > Searching the net I found several hints this CPU (Intel DualCore E5200) _is_ > supported by EST and the voltage is being reduced in idle states like > intended. > So it looks like there are more things which might break success using est for > me. Can you explain what may be a reason for this problem? In the past it was > about hardcoding cpu data about voltages into the source but as I know this > is not the case anymore but ACPI is involved. > Is the BIOS likely to be the reason or is it an ignored CPU stepping or...? > > Same happens with the new CPU Intel Atom N550 on a Jetway board called > NC9c-550-LF. est does not attach and some watts are wasted. > > Thank you! -- Andriy Gapon