Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755867AbXGACE5 (ORCPT ); Sat, 30 Jun 2007 22:04:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754485AbXGACEt (ORCPT ); Sat, 30 Jun 2007 22:04:49 -0400 Received: from smtp-03.mandic.com.br ([200.225.81.143]:43048 "EHLO smtp-03.mandic.com.br" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754424AbXGACEs (ORCPT ); Sat, 30 Jun 2007 22:04:48 -0400 Message-ID: <46870BB7.9020901@mandic.com.br> Date: Sat, 30 Jun 2007 23:04:39 -0300 From: "Renato S. Yamane" User-Agent: Thunderbird 2.0.0.4 (X11/20070604) MIME-Version: 1.0 To: Robert Hancock CC: cpufreq@lists.linux.org.uk, Linux Kernel Mailing List , jeremy@goop.org Subject: Re: speedstep-centrino (no such device) References: <468442D4.2030900@shaw.ca> In-Reply-To: <468442D4.2030900@shaw.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2105 Lines: 64 Robert Hancock wrote: > Renato S. Yamane wrote: >> Is impossible use speedstep in my Laptop with Pentium M 1,86Ghz: >> >> #modprobe speedstep-centrino >> FATAL: Error inserting speedstep_centrino >> (/lib/modules/2.6.18-3-686/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko): >> No such device >> >> To do that (speedstep), I need install powersaved, but >> speedstep-centrino is not used. > > I believe acpi-cpufreq is preferred over speedstep-centrino in most > cases today, does that work? Robert, acpi_cpufreq works fine to me. I insert parameter CPUFREQD_MODULE="acpi_cpufreq" in my /etc/powersave/cpufreq and now is possible use scaling frequency. I read /usr/src/linux-2.6.21.5/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c and see that this module is made using document 25261202.pdf (from Intel) as reference. This document include only some Pentium M models. My Pentium M is model 750 (1.86GHz) and you can see datasheet on document 30526202.pdf available here: What I can choose on "CPUFreq Processor drivers" availiable in .config? Currently I do that (in Kernel 2.6.21.1): # CPUFreq processor drivers # CONFIG_X86_ACPI_CPUFREQ=m # CONFIG_X86_POWERNOW_K6 is not set # CONFIG_X86_POWERNOW_K7 is not set # CONFIG_X86_POWERNOW_K8 is not set # CONFIG_X86_GX_SUSPMOD is not set CONFIG_X86_SPEEDSTEP_CENTRINO=y CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y CONFIG_X86_SPEEDSTEP_ICH=m # CONFIG_X86_SPEEDSTEP_SMI is not set # CONFIG_X86_P4_CLOCKMOD is not set # CONFIG_X86_CPUFREQ_NFORCE2 is not set # CONFIG_X86_LONGRUN is not set # CONFIG_X86_LONGHAUL is not set # CONFIG_X86_E_POWERSAVER is not set # # shared options # # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set CONFIG_X86_SPEEDSTEP_LIB=m CONFIG_X86_SPEEDSTEP_RELAXED_CAP_CHECK=y Best regards, Renato S. Yamane - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/