From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: [Help] I can't get Intel Speedstep working Date: Fri, 10 Apr 2009 18:43:12 -0600 Message-ID: <49DFE7A0.6060409@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from main.gmane.org ([80.91.229.2]:44943 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751872AbZDKAuF (ORCPT ); Fri, 10 Apr 2009 20:50:05 -0400 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1LsRQ2-00022j-G1 for linux-acpi@vger.kernel.org; Sat, 11 Apr 2009 00:50:02 +0000 Received: from s0106000c41bb86e1.ss.shawcable.net ([70.76.47.20]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 11 Apr 2009 00:50:02 +0000 Received: from hancockrwd by s0106000c41bb86e1.ss.shawcable.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 11 Apr 2009 00:50:02 +0000 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org Cc: linux-acpi@vger.kernel.org Robert Szalai wrote: > Hello everybody, > > I have a Shuttle K48 Barebone PC (Intel 945GC + ICH7 chipset) and a > Core 2 Duo E7300 CPU. I'm using Ubuntu 8.04 with 2.6.24-23-generic > kernel on my box. Everything works fine except Speedstep. When I try > to load acpi_cpufreq module, I get the following error: > > $ sudo modprobe acpi_cpufreq > FATAL: Error inserting acpi_cpufreq > (/lib/modules/2.6.24-23-generic/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): > No such device > > I've tried everything (other kernel versions, various patches) but the > result is the same. > I don't know if it is related to EIST or not but I've found these two > Exceptions in my dmesg: > > [ 20.675593] ACPI Exception (processor_core-0822): AE_NOT_FOUND, > Processor Device is not present [20070126] > [ 20.675599] ACPI Exception (processor_core-0822): AE_NOT_FOUND, > Processor Device is not present [20070126] > > After some research I've found that maybe a broken DSDT table is the > couse of my problem. I'm not an ACPI expert and I dont't know how to > locate and fix the problem in my DSDT. I've uploaded my dsdt.dsl to > > http://www.easy-share.com/1903982677/dsdt.dsl > > Any suggestions? I'd really like to use Speedstep on my Box. > You are my last hope Guys. Your system doesn't seem to have anything interesting regarding CPU frequency scaling in the DSDT, but it's often in the FADT instead. Posting a full acpidump might be more useful.. Also make sure that any BIOS settings to allow CPU frequency scaling are enabled.