From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760979AbZDQAqb (ORCPT ); Thu, 16 Apr 2009 20:46:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757007AbZDQAl3 (ORCPT ); Thu, 16 Apr 2009 20:41:29 -0400 Received: from mga03.intel.com ([143.182.124.21]:41720 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760595AbZDQAl2 (ORCPT ); Thu, 16 Apr 2009 20:41:28 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.40,201,1239001200"; d="scan'208";a="132442690" Subject: Re: [BISECTED] [REGRESSION] "ACPI video: support _BQC/_BCL/_BCM methods that use index values" breaks ACPI video From: yakui_zhao To: Maxim Levitsky Cc: linux-kernel In-Reply-To: <1239881839.5981.4.camel@maxim-laptop> References: <1239881839.5981.4.camel@maxim-laptop> Content-Type: text/plain Organization: Intel Open Source Technology Center Date: Fri, 17 Apr 2009 08:42:36 +0800 Message-Id: <1239928956.3638.21.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2009-04-16 at 19:37 +0800, Maxim Levitsky wrote: > I finally bisected a acpi video regression on my aspire 5720G > > Reverting commit > > "ACPI video: support _BQC/_BCL/_BCM methods that use index values" > commit 1a7c618a3f7bef1a20ae740df512eeba21397fa5. > > > Makes it work, otherwise /sys/class/backlight is empty, and I get error > messages when I press hardware keys to change brightness: > > "ACPI: Failed to switch the brightness" Will you please file a new bug at http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the output of acpidump, dmidecode? thanks. > > > Best regards, > Maxim Levitsky >