From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Resume -> higher power drain? Date: Sat, 7 May 2005 21:59:46 +0200 Message-ID: <20050507195946.GA8212@elf.ucw.cz> References: <427CC869.1050506@kernelconcepts.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <427CC869.1050506-t93Ne7XHvje5bSeCtf/tX7NAH6kLmebB@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Nils Faerber Cc: ACPI mailing list List-Id: linux-acpi@vger.kernel.org Hi! > I just observed a strange phenomenon on my new T42p (latest BIOS). > I can successfully suspend and resume to and from S3 and S4! > Kernel ist vanilla 2.6.11.8 using ACPI support scripts from the Ubuntu > acpi-support package (removes critical modules, does vbe save and > restore, etc...) > So far very fine and indeed good work. > > Before suspend I usually see a power consumption of about 16W including > WLAN, which is nicely low. > But strangely after resume from either S3 or S4 I have see a power > consumption of 19W+. This means ~3W more or in other words, roughly 20% > less runtime. > This is pretty annoying - not a real show-stoppper but it would be nicer > without ;) > > I have no idea how to diagnose this. My first guess is that some devices > are not resumed correctly but I have no real idea how for example gather > device states before and after suspend, or other means to diagnose this. > > So, if anyone has an idea how I can diagnose this and help this issue to > be solved, let me know. Or is there already a solution floating around? Is cpufreq working correctly after resume? Pavel -- Boycott Kodak -- for their patent abuse against Java. ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20