From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH] ACPI: Ignore _BQC object when registering backlight device Date: Thu, 17 Jul 2008 14:44:54 +0200 Message-ID: <487F3EC6.8070406@firstfloor.org> References: <1216262765.7169.36.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from one.firstfloor.org ([213.235.205.2]:40540 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754052AbYGQMo5 (ORCPT ); Thu, 17 Jul 2008 08:44:57 -0400 In-Reply-To: <1216262765.7169.36.camel@localhost.localdomain> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zhao Yakui Cc: linux-acpi@vger.kernel.org, lenb@kernel.org Zhao Yakui wrote: >>>From : Zhao Yakui > > According to acpi spec , the objectes of _BCL and _BCM are required if > integrated LCD is present and supports brightness level and the _BQC is > the optional object. So the _BQC object will be ignored when the backlight > device is registered. > At the same time when there is no _BQC object, the current brightness will be > set to the maximum. > > http://bugzilla.kernel.org/show_bug.cgi?id=10206 Hmm, but the original patch was reverted. How is this patch better than the patch that was reverted by Linus? -Andi