From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Becker Subject: Re: [Linux-fbdev-devel] no backlight on radeon after recent kernel "upgrade"s Date: Wed, 21 Feb 2007 18:09:51 -0800 Message-ID: <20070222020951.GR7920@ca-server1.us.oracle.com> 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 Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: Cc: Yaroslav Halchenko , Richard Purdie , Andrew Morton , linux-fbdev-devel@lists.sourceforge.net, 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? 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