From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262126AbVGVSDr (ORCPT ); Fri, 22 Jul 2005 14:03:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262129AbVGVSDq (ORCPT ); Fri, 22 Jul 2005 14:03:46 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:32708 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S262126AbVGVSCm (ORCPT ); Fri, 22 Jul 2005 14:02:42 -0400 Date: Fri, 22 Jul 2005 20:02:36 +0200 From: Pavel Machek To: Voluspa Cc: jesper.juhl@gmail.com, lista1@telia.com, linux-kernel@vger.kernel.org Subject: Re: 2.6.13-rc3 Battery times at 100/250/1000 Hz = Zero difference Message-ID: <20050722180236.GA615@atrey.karlin.mff.cuni.cz> References: <20050721200448.5c4a2ea0.lista1@telia.com> <9a8748490507211114227720b0@mail.gmail.com> <20050722144855.GA2036@elf.ucw.cz> <20050722191510.5e120515.voluspa@telia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050722191510.5e120515.voluspa@telia.com> User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > and catting /proc/acpi/processor/CPU0/power gives > active state: C1 > max_cstate: C8 > bus master activity: 00000000 > states: > *C1: type[C1] promotion[--] demotion[--] latency[000] usage[02998796] > > /sys/module/processor/parameters/max_cstate says 8 > /sys/module/processor/parameters/bm_history says 4294967295 > > So I'm a bit baffled that no C2/C3 turns up. I've done a test-compile > with all of ACPI in kernel instead of as modules, but there was no > difference. > > I'll unload the whole USB-module part and boot without loading them, but > will it matter? Please provide more details about how to debug this > (very confusing) field. Okay, if you have no C2/C3 like the dump above shows, unloading usb will not help. It seems like your machine is simply not able to do reasonable powersaving. Pavel -- Boycott Kodak -- for their patent abuse against Java.