From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: no backlight on radeon after recent kernel "upgrade"s Date: Mon, 19 Feb 2007 00:04:12 -0800 Message-ID: <20070219000412.acad13de.akpm@linux-foundation.org> References: <20070219044616.GC25659@washoe.onerussian.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 1HJ3Vc-0002Q8-CL for linux-fbdev-devel@lists.sourceforge.net; Mon, 19 Feb 2007 00:04:28 -0800 Received: from smtp.osdl.org ([65.172.181.24]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HJ3Va-0005Sx-Qo for linux-fbdev-devel@lists.sourceforge.net; Mon, 19 Feb 2007 00:04:28 -0800 In-Reply-To: <20070219044616.GC25659@washoe.onerussian.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: Yaroslav Halchenko Cc: Richard Purdie , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org On Sun, 18 Feb 2007 23:46:16 -0500 Yaroslav Halchenko wrote: > Dear Kernel Developers, > > Since the most recent successful for me kernel 2.6.19-rc6-mm1, I've > tried few times to build more recent snapshots and now finally > 2.6.20-mm2. In all those cases I have a sad outcome -- kernel boots but > at some point during boot (few moments after Penguin icon in the top left > corner appears), light turns off... I still can see something, especially > if I light a strong flashlight at a sharp angle. > > I've enabled back-light support and lcd support for those unsuccessful > kernels (with all backlight support features disabled kernel boots > ok and backlight shines as bright as always) > > All my changes of values for files under > /sys/class/backlight/radeonbl0 > had no impact on the screen. Also I had no files under /sys/class/lcd. > > Running > radeontool light off > caused complete turning off of LCD - I could not see > anything anymore. > > sony's spictl -b had no effect as well. > > Config can be found at > http://www.onerussian.com/Linux/bugs/nobacklight.1/config-2.6.20-mm2 > lshw > http://www.onerussian.com/Linux/bugs/nobacklight.1/lshw > other details are available from > http://www.onerussian.com/Linux/bugs/nobacklight.1/ > > Could you please advise? (cc's added) Is 2.6.20 broken? I assume the latest 2.6.20-gitN snapshot are failing.. ------------------------------------------------------------------------- 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