Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965227AbXBVCKo (ORCPT ); Wed, 21 Feb 2007 21:10:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965233AbXBVCKn (ORCPT ); Wed, 21 Feb 2007 21:10:43 -0500 Received: from agminet01.oracle.com ([141.146.126.228]:17796 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965227AbXBVCKm (ORCPT ); Wed, 21 Feb 2007 21:10:42 -0500 Date: Wed, 21 Feb 2007 18:09:51 -0800 From: Joel Becker To: James Simmons 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 Message-ID: <20070222020951.GR7920@ca-server1.us.oracle.com> Mail-Followup-To: James Simmons , Yaroslav Halchenko , Richard Purdie , Andrew Morton , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org References: <20070219044616.GC25659@washoe.onerussian.com> <20070219000412.acad13de.akpm@linux-foundation.org> <1171876788.6046.3.camel@localhost.localdomain> <20070221055648.GM25659@washoe.onerussian.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Burt-Line: Trees are cool. X-Red-Smith: Ninety feet between bases is perhaps as close as man has ever come to perfection. User-Agent: Mutt/1.5.11 X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1067 Lines: 35 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? Joel -- Life's Little Instruction Book #407 "Every once in a while, take the scenic route." Joel Becker Principal Software Developer Oracle E-mail: joel.becker@oracle.com Phone: (650) 506-8127 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/