From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933103AbXBVPzo (ORCPT ); Thu, 22 Feb 2007 10:55:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933106AbXBVPzo (ORCPT ); Thu, 22 Feb 2007 10:55:44 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:37745 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933103AbXBVPzn (ORCPT ); Thu, 22 Feb 2007 10:55:43 -0500 Date: Thu, 22 Feb 2007 15:55:24 +0000 (GMT) From: James Simmons To: Joel Becker cc: Yaroslav Halchenko , Richard Purdie , Andrew Morton , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [Linux-fbdev-devel] no backlight on radeon after recent kernel "upgrade"s In-Reply-To: <20070222020951.GR7920@ca-server1.us.oracle.com> Message-ID: References: <20070219044616.GC25659@washoe.onerussian.com> <20070219000412.acad13de.akpm@linux-foundation.org> <1171876788.6046.3.camel@localhost.localdomain> <20070221055648.GM25659@washoe.onerussian.com> <20070222020951.GR7920@ca-server1.us.oracle.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > On Thu, Feb 22, 2007 at 01:11:18AM +0000, James Simmons wrote: > > > *$> grep BACKLIGH /boot/config-2.6.20 > > > # CONFIG_FB_BACKLIGHT is not set > > > CONFIG_BACKLIGHT_LCD_SUPPORT=y > > > CONFIG_BACKLIGHT_CLASS_DEVICE=m > > > CONFIG_BACKLIGHT_DEVICE=y > > > > You need to explictly enable the backlight for your fbdev driver. It > > doesn't do the selecting magically for you. > > Jus do a make "favorite"config and go to the fbdev menu and select the > > backlight option for your fbdev driver. > > I would think that we'd always want to enable the backlight. > How are people supposed to Just Know that the kernel defaults to a black > LCD? I just tested various confirations of backlight support. Backlight is ALWAYS selected by default when you select a particular fbdev driver that has backlight support. You just have the option to turn it off if you want. These problems are showing up because of stale .config files. From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Simmons Subject: Re: no backlight on radeon after recent kernel "upgrade"s Date: Thu, 22 Feb 2007 15:55:24 +0000 (GMT) Message-ID: References: <20070219044616.GC25659@washoe.onerussian.com> <20070219000412.acad13de.akpm@linux-foundation.org> <1171876788.6046.3.camel@localhost.localdomain> <20070221055648.GM25659@washoe.onerussian.com> <20070222020951.GR7920@ca-server1.us.oracle.com> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HKGIK-0004qo-4h for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Feb 2007 07:55:44 -0800 Received: from pentafluge.infradead.org ([213.146.154.40]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HKGIH-0007T2-4O for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Feb 2007 07:55:42 -0800 In-Reply-To: <20070222020951.GR7920@ca-server1.us.oracle.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Joel Becker Cc: linux-fbdev-devel@lists.sourceforge.net, Andrew Morton , Richard Purdie , linux-kernel@vger.kernel.org, Yaroslav Halchenko > On Thu, Feb 22, 2007 at 01:11:18AM +0000, James Simmons wrote: > > > *$> grep BACKLIGH /boot/config-2.6.20 > > > # CONFIG_FB_BACKLIGHT is not set > > > CONFIG_BACKLIGHT_LCD_SUPPORT=y > > > CONFIG_BACKLIGHT_CLASS_DEVICE=m > > > CONFIG_BACKLIGHT_DEVICE=y > > > > You need to explictly enable the backlight for your fbdev driver. It > > doesn't do the selecting magically for you. > > Jus do a make "favorite"config and go to the fbdev menu and select the > > backlight option for your fbdev driver. > > I would think that we'd always want to enable the backlight. > How are people supposed to Just Know that the kernel defaults to a black > LCD? I just tested various confirations of backlight support. Backlight is ALWAYS selected by default when you select a particular fbdev driver that has backlight support. You just have the option to turn it off if you want. These problems are showing up because of stale .config files. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV