From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Purdie Subject: Re: no backlight on radeon after recent kernel "upgrade"s Date: Thu, 22 Feb 2007 09:56:16 +0000 Message-ID: <1172138176.5837.27.camel@localhost.localdomain> References: <20070219044616.GC25659@washoe.onerussian.com> <20070219000412.acad13de.akpm@linux-foundation.org> <1171876788.6046.3.camel@localhost.localdomain> <877iub9mu2.fsf@sycorax.lbl.gov> <1172097718.5790.29.camel@localhost.localdomain> <87fy8z6pdd.fsf@sycorax.lbl.gov> 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-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HKAgk-00029p-Cj for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Feb 2007 01:56:36 -0800 Received: from tim.rpsys.net ([194.106.48.114] ident=0) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1HKAgi-0006nx-1s for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Feb 2007 01:56:33 -0800 In-Reply-To: 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: James Simmons Cc: Yaroslav Halchenko , Alex Romosan , linux-fbdev-devel@lists.sourceforge.net, Andrew Morton , linux-kernel@vger.kernel.org On Thu, 2007-02-22 at 01:13 +0000, James Simmons wrote: > > Richard Purdie writes: > > > > > If FB_RADEON_BACKLIGHT wasn't set for 2.6.20, can you try 2.6.21-rc1 > > > with that option disabled? > > > > i don't have my laptop with me but i am pretty sure > > FB_RADEON_BACKLIGHT wasn't set for 2.6.20 (i think it showed up as a > > new option when i did make oldconfig). i'll post the difference when i > > get home tonight and also try disabling it. > > Correct. You need to enable the backlight for the radeon card. The problem is when that is set, the device doesn't work as they need the ibm ACPI driver, not the raedon one. Richard ------------------------------------------------------------------------- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965047AbXBVJ4t (ORCPT ); Thu, 22 Feb 2007 04:56:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965134AbXBVJ4s (ORCPT ); Thu, 22 Feb 2007 04:56:48 -0500 Received: from tim.rpsys.net ([194.106.48.114]:55312 "EHLO tim.rpsys.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965047AbXBVJ4r (ORCPT ); Thu, 22 Feb 2007 04:56:47 -0500 Subject: Re: no backlight on radeon after recent kernel "upgrade"s From: Richard Purdie To: James Simmons Cc: Alex Romosan , Yaroslav Halchenko , Andrew Morton , linux-kernel@vger.kernel.org, linux-fbdev-devel@lists.sourceforge.net In-Reply-To: References: <20070219044616.GC25659@washoe.onerussian.com> <20070219000412.acad13de.akpm@linux-foundation.org> <1171876788.6046.3.camel@localhost.localdomain> <877iub9mu2.fsf@sycorax.lbl.gov> <1172097718.5790.29.camel@localhost.localdomain> <87fy8z6pdd.fsf@sycorax.lbl.gov> Content-Type: text/plain Date: Thu, 22 Feb 2007 09:56:16 +0000 Message-Id: <1172138176.5837.27.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2007-02-22 at 01:13 +0000, James Simmons wrote: > > Richard Purdie writes: > > > > > If FB_RADEON_BACKLIGHT wasn't set for 2.6.20, can you try 2.6.21-rc1 > > > with that option disabled? > > > > i don't have my laptop with me but i am pretty sure > > FB_RADEON_BACKLIGHT wasn't set for 2.6.20 (i think it showed up as a > > new option when i did make oldconfig). i'll post the difference when i > > get home tonight and also try disabling it. > > Correct. You need to enable the backlight for the radeon card. The problem is when that is set, the device doesn't work as they need the ibm ACPI driver, not the raedon one. Richard