From owner-freebsd-mobile@FreeBSD.ORG Tue Aug 5 00:44:45 2003 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D5FA037B404 for ; Tue, 5 Aug 2003 00:44:45 -0700 (PDT) Received: from birch.ripe.net (birch.ripe.net [193.0.1.96]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9FBA443FCB for ; Tue, 5 Aug 2003 00:44:44 -0700 (PDT) (envelope-from marks@ripe.net) Received: from laptop.6bone.nl (cow.ripe.net [193.0.1.239]) by birch.ripe.net (8.12.9/8.11.6) with SMTP id h757ih9N024894; Tue, 5 Aug 2003 09:44:43 +0200 Received: (nullmailer pid 944 invoked by uid 1000); Tue, 05 Aug 2003 06:52:46 -0000 Date: Tue, 5 Aug 2003 08:52:46 +0200 From: Mark Santcroos To: Rudolph Pereira Message-ID: <20030805065245.GB655@laptop.6bone.nl> References: <20030712014031.GA48560@starfleet.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030712014031.GA48560@starfleet.org.au> User-Agent: Mutt/1.4.1i X-Handles: MS6-6BONE, MS18417-RIPE cc: freebsd-mobile@freebsd.org Subject: Re: battery life on presario 720 X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Aug 2003 07:44:46 -0000 Hi Rudolph, Can you send the output of "sysctl hw.acpi"? Mark On Sat, Jul 12, 2003 at 11:40:32AM +1000, Rudolph Pereira wrote: > Hello, > I have a presario 720au laptop (only has acpi support), > and I am trying to work out why it's > running time on battery is so low under freebsd. > Under linux and windows xp, I can get up to about 4 hours of battery > life, while on freebsd (-current, compiled jul 9), it's less than two > hours (closer to 1:45). > > Is there something fundamental I'm missing? Both windows xp and linux > seem to run quieter/cooler (I assume they are turning off fans, idling > the cpu, etc), but I cannot achieve the same effect with freebsd. > > I've attached a dmesg, if that's of any help. All the OSs are pretty > much stock standard installs with no tweaking. Linux is 2.4.21 +acpi > patches, and freebsd only has nate's EC patch (which has since been > committed, iirc). I've tried using my own compiled dsdt/aml table but > that doesn't seem to change anything. > > If anyone can point me in the right direction, or give any other > information, it would be appreciated. > > thanks > -- Mark Santcroos RIPE Network Coordination Centre http://www.ripe.net/home/mark/ New Projects Group/TTM