Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933777Ab3GWRxv (ORCPT ); Tue, 23 Jul 2013 13:53:51 -0400 Received: from know-smtprelay-omc-1.server.virginmedia.net ([80.0.253.65]:41666 "EHLO know-smtprelay-omc-1.server.virginmedia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933683Ab3GWRxt (ORCPT ); Tue, 23 Jul 2013 13:53:49 -0400 X-Originating-IP: [81.99.114.138] X-Spam: 0 X-Authority: v=2.0 cv=A800pNqG c=1 sm=1 a=rTb9Q+mClrhkGV9Ah9iRIA==:17 a=IkcTkHD0fZMA:10 a=xqWC_Br6kY4A:10 a=N1CowNylAAAA:8 a=ISun8btPj8CbhGXWq_MA:9 a=QEXdDO2ut3YA:10 a=rTb9Q+mClrhkGV9Ah9iRIA==:117 Message-ID: <1374601675.29964.15.camel@artifact> Subject: Re: Linux 3.11-rc2 From: Steven Newbury To: "Rafael J. Wysocki" Cc: Matthew Garrett , James Hogan , Linus Torvalds , Linux Kernel Mailing List , Kamal Mostafa , "Rafael J. Wysocki" , ACPI Devel Maling List Date: Tue, 23 Jul 2013 18:47:55 +0100 In-Reply-To: <1943327.gJaLv781Zb@vostro.rjw.lan> References: <5728692.GlhGgHY92H@vostro.rjw.lan> <1374516979.2641.0.camel@x230> <1943327.gJaLv781Zb@vostro.rjw.lan> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.9.4 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1446 Lines: 34 On Mon, 2013-07-22 at 21:56 +0200, Rafael J. Wysocki wrote: > On Monday, July 22, 2013 06:16:20 PM Matthew Garrett wrote: > > On Mon, 2013-07-22 at 15:02 +0200, Rafael J. Wysocki wrote: > > > > > In the meantime I received a report from Steven Newbury that these changes > > > broke things for him too, so we need to revert commits 8c5bd7a and efaa14c. > > > The other two commits in the series should be benign. > > > > Could you let me know the details of this problem? > > Steven, can you please describe the problem you're seeing to Matthew and > the other people on the list? > > Rafael > Before the changes backlight was working fine using the ACPI method: /sys/class/backlight/acpi_video0/ is present and the keyboard function keys control brightness with notifications working in GNOME. In the code as was present in the linux-pm/bleeding-edge tree I would encounter a hard lockup on keyboard brightness trigger. This also occurred with the code as it initially hit mainline, but a later commit fixed the crash*, but resulted in no backlight controls being available at all. /sys/class/backlight is empty. *not actually sure if /sys/class/backlight contained anything before this -- 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/