Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752863AbXBSFOf (ORCPT ); Mon, 19 Feb 2007 00:14:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752864AbXBSFOf (ORCPT ); Mon, 19 Feb 2007 00:14:35 -0500 Received: from washoe.rutgers.edu ([165.230.95.67]:37280 "EHLO smtp.onerussian.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752863AbXBSFOe (ORCPT ); Mon, 19 Feb 2007 00:14:34 -0500 X-Greylist: delayed 1691 seconds by postgrey-1.27 at vger.kernel.org; Mon, 19 Feb 2007 00:14:33 EST Date: Sun, 18 Feb 2007 23:46:16 -0500 From: Yaroslav Halchenko To: linux-kernel@vger.kernel.org Message-ID: <20070219044616.GC25659@washoe.onerussian.com> Mail-Followup-To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-URL: http://www.onerussian.com X-Image-Url: http://www.onerussian.com/img/yoh.png X-PGP-Key: http://www.onerussian.com/gpg-yoh.asc X-fingerprint: 3BB6 E124 0643 A615 6F00 6854 8D11 4563 75C0 24C8 User-Agent: mutt-ng/devel-r804 (Debian) X-SA-Exim-Connect-IP: 192.168.100.6 X-SA-Exim-Rcpt-To: linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: yoh@washoe.rutgers.edu Subject: no backlight on radeon after recent kernel "upgrade"s X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on smtp.onerussian.com) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1691 Lines: 44 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? -- Yaroslav Halchenko Research Assistant, Psychology Department, Rutgers-Newark Student Ph.D. @ CS Dept. NJIT Office: (973) 353-5440x263 | FWD: 82823 | Fax: (973) 353-1171 101 Warren Str, Smith Hall, Rm 4-105, Newark NJ 07102 WWW: http://www.linkedin.com/in/yarik - 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/