From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757004AbZIKWAE (ORCPT ); Fri, 11 Sep 2009 18:00:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756882AbZIKWAE (ORCPT ); Fri, 11 Sep 2009 18:00:04 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:57175 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756617AbZIKWAD (ORCPT ); Fri, 11 Sep 2009 18:00:03 -0400 Date: Fri, 11 Sep 2009 22:59:58 +0100 From: Matthew Garrett To: tsuraan Cc: linux-kernel@vger.kernel.org Subject: Re: sony-laptop platform driver Message-ID: <20090911215958.GA30989@srcf.ucam.org> References: <84fb38e30909110812r23ed0db0y80ae17178395694e@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <84fb38e30909110812r23ed0db0y80ae17178395694e@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 11, 2009 at 10:12:32AM -0500, tsuraan wrote: > The current mainline sony-laptop platform driver is missing some > crucial features from Eva's driver > (http://www.basyskom.org/~eva/log_installation_vaio_z21vnx.html), > especially the ability to shut off the embedded nvidia card in laptops > with hybrid graphics. Simply disabling the nvidia card using Eva's > driver brings my laptop's power consumption from 18W to 12W, which is > a pretty huge leap in battery life. The interface used for that isn't sony-specific, so sony-laptop is the wrong place to put it. I've just submitted a patch to the nouveau developers. -- Matthew Garrett | mjg59@srcf.ucam.org