From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: 2.6.21-rc2 radeon backlight Date: Fri, 02 Mar 2007 12:35:14 -0800 (PST) Message-ID: <20070302.123514.35465791.davem@davemloft.net> References: <20070301184531.b3aeafe3.akpm@linux-foundation.org> <87tzx35zkc.fsf@sycorax.lbl.gov> <20070302122920.a2967ebf.akpm@linux-foundation.org> 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 1HNETG-0007I2-Kv for linux-fbdev-devel@lists.sourceforge.net; Fri, 02 Mar 2007 12:35:18 -0800 Received: from [74.93.104.97] (helo=sunset.davemloft.net) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HNETG-0006uT-7O for linux-fbdev-devel@lists.sourceforge.net; Fri, 02 Mar 2007 12:35:18 -0800 In-Reply-To: <20070302122920.a2967ebf.akpm@linux-foundation.org> 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: akpm@linux-foundation.org Cc: rpurdie@rpsys.net, romosan@sycorax.lbl.gov, linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org From: Andrew Morton Date: Fri, 2 Mar 2007 12:29:20 -0800 > On Fri, 02 Mar 2007 09:24:03 -0800 > Alex Romosan wrote: > > > Andrew Morton writes: > > > > > On Wed, 28 Feb 2007 08:32:43 -0800 > > > Alex Romosan wrote: > > > > > >> the backlight on my thinkpad still (2.6.20 worked fine) doesn't come > > >> on if i have the radeon backlight enabled. without it, i guess it's > > >> the ibm acpi modules that controls the backlight and it seems to work > > >> fine. > > >> > > > > > > Unclear. Are you saying that the backlight comes on OK if you use > > > the IBM acpi module? > > > > yes, if i disable the radeon backlight and use the ibm acpi module, > > than the backlight works. if i enable the radeon backlight, the screen > > stays dark and i can't turn it on (i tried using radeontool to control > > it but nothing happened). > > Richard, is this actually a bug, or is it a config error or something like that? > > And should we track it as a post-2.6.20 regression? Why don't we compromise for 2.6.21 by marking the Radeon backlight stuff EXPERIMENTAL until the cases where IBM ACPI works and the Radeon backlight stuff does not are worked out? ------------------------------------------------------------------------- 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