From owner-freebsd-mobile@FreeBSD.ORG Fri Feb 10 18:06:34 2006 Return-Path: X-Original-To: freebsd-mobile@freebsd.org 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 8999216A420; Fri, 10 Feb 2006 18:06:34 +0000 (GMT) (envelope-from randy@psg.com) Received: from rip.psg.com (rip.psg.com [147.28.0.39]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4879243D46; Fri, 10 Feb 2006 18:06:34 +0000 (GMT) (envelope-from randy@psg.com) Received: from localhost ([127.0.0.1] helo=roam.psg.com) by rip.psg.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.60 (FreeBSD)) (envelope-from ) id 1F7cfB-0008X0-7A; Fri, 10 Feb 2006 18:06:33 +0000 Received: from localhost ([127.0.0.1] helo=roam.psg.com) by roam.psg.com with esmtp (Exim 4.60 (FreeBSD)) (envelope-from ) id 1F7cf6-0007y7-7c; Fri, 10 Feb 2006 08:06:28 -1000 From: Randy Bush MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17388.54819.534106.523870@roam.psg.com> Date: Fri, 10 Feb 2006 08:06:27 -1000 To: John Baldwin References: <43EB1470.9020806@cbs.dk> <1BA332D3-F745-40D1-AF60-13BE874DEB20@FreeBSD.org> <17388.54044.444793.889876@roam.psg.com> <200602101302.49534.jhb@freebsd.org> Cc: freebsd-mobile@freebsd.org Subject: Re: Power-drain during suspend? X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Feb 2006 18:06:34 -0000 >>>>> hw.pci.do_power_nodriver=[1|2|3] >>>>> The larger the number, the more aggressive the power limitations. >>>>> I use '3' on my T30 and it works fine. >>> Use sysctl(8) to set it for testing. If it works, you can then make >>> it permanent by setting it either in /boot/loader.conf or /etc/ >>> sysctl.conf. >> how do i know "if it works?" > Well, this one really only affects device probe (and maybe suspend/resume?), > so you'd need to boot with it set via the loader to see if it works. Also, > you can try suspending with it enabled and seeing if it cuts down on the > amount of power drain while suspended. aha! got it. i can suspend/resume if it is = 3 on a t41. we'll see at next boot. randy