From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263420AbTKFIQ7 (ORCPT ); Thu, 6 Nov 2003 03:16:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263424AbTKFIQ7 (ORCPT ); Thu, 6 Nov 2003 03:16:59 -0500 Received: from badenpowell.cs.ubc.ca ([142.103.6.71]:37824 "EHLO badenpowell.cs.ubc.ca") by vger.kernel.org with ESMTP id S263420AbTKFIQ6 (ORCPT ); Thu, 6 Nov 2003 03:16:58 -0500 Date: Thu, 6 Nov 2003 00:16:57 -0800 (PST) From: Dustin Lang To: Linux Kernel list Subject: Re: Re:No backlight control on PowerBook G4 In-Reply-To: <20031106090132.B18367@tarantel.rz.fh-muenchen.de> Message-ID: References: <1067820334.692.38.camel@gaston> <1067878624.7695.15.camel@sonja> <1067896476.692.36.camel@gaston> <1067976347.945.4.camel@sonja> <1068078504.692.175.camel@gaston> <20031106090132.B18367@tarantel.rz.fh-muenchen.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Score: -1 IN_REP_TO,REFERENCES,USER_AGENT_PINE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, This thread is now a bit off-topic, since the solution I'm talking about is in XFree86 rather than the kernel, but I thought I'd just post it here so that the next person who hits on this problem can find the answer in the archives. To reply to my own post: the patch contributed by Guido Guenther to the XFree86 CVS tree, which was meant for GeForce4-in-PowerBooks, also works for me on my GeForceFX Go 5200 as found in some PowerBooks (PCI ID 10de:0329). To get this to work you'll have to grab the CVS sources, find the part that checks what chipset you have, and edit it so that your chip passes the test. (Hint: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_driver.c : NVBacklightEnable). You'll also need to make sure DPMS is turned on (hint: read "man XF86Config-4" carefully). The usual disclaimers apply: this hack will probably destroy your video card, make you lose your hair, and microwave your cat. It worked for me, and my hair and cat are fine, but that's just because I'm lucky. Laters, dstn.