From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Subject: Enhanced SpeedStep on Asus M2400Ne with Pentium-M Dothan Date: Sun, 5 Sep 2004 23:26:16 +0000 (UTC) Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org I recently bought an Asus M2400Ne laptop. It is a Centrino, and it has the newer generation of the Pentium-M processor, Dothan. Dubiously, Asus advertises a Power4Gear power management function on it, which I assumed only is a utility to change Windows power management schemes. I'm instead running Gentoo Linux on it, specifically kernel 2.6.8.1, unpatched except for a small patch to speedstep-centrino.c to make it recognize the new Dothans. I am having absolutely no success getting Intel Enhanced SpeedStep to work on this notebook. Using either kernel module, acpi (ACPI Processor P-States driver) or speedstep-centrino (Intel Enhanced SpeedStep driver), I get a "No such device" error. In dmesg, speedstep-centrino tells me to contact the maintainer (I did, and he said it's something with my laptop--it is looking for a freq./voltage table for my processor when there should be one in the BIOS), and acpi is silent. I have talked with a few people about this, and I'm still stuck. Someone said that (by looking at my DSDT) Asus renamed some methods in the DSDT (probably to make their "proprietary" power management technology require special drivers) by one letter (from "_***" to "A***"), but I have no further ideas on how to proceed. I wouldn't mind either making a custom DSDT (but I wouldn't know what names to change) or editing some files in my copy of the kernel to make it call the "A***" methods instead (same problem), but I'm really stuck. Any help that anyone could offer would be greatly appreciated. Thanks, Tom ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click