From owner-svn-src-all@FreeBSD.ORG  Tue Aug 26 08:10:36 2014
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id A031F334;
 Tue, 26 Aug 2014 08:10:36 +0000 (UTC)
Received: from cell.glebius.int.ru (glebius.int.ru [81.19.69.10])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "cell.glebius.int.ru", Issuer "cell.glebius.int.ru" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 0842E3702;
 Tue, 26 Aug 2014 08:10:34 +0000 (UTC)
Received: from cell.glebius.int.ru (localhost [127.0.0.1])
 by cell.glebius.int.ru (8.14.9/8.14.9) with ESMTP id s7Q8AVTZ058665
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Tue, 26 Aug 2014 12:10:31 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
Received: (from glebius@localhost)
 by cell.glebius.int.ru (8.14.9/8.14.9/Submit) id s7Q8AVRp058664;
 Tue, 26 Aug 2014 12:10:31 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to
 glebius@FreeBSD.org using -f
Date: Tue, 26 Aug 2014 12:10:31 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Adrian Chadd <adrian@FreeBSD.org>, Henry Hu <henry.hu.sh@gmail.com>
Subject: Re: svn commit: r270516 - head/sys/dev/drm2/i915
Message-ID: <20140826081031.GD7693@FreeBSD.org>
References: <201408250503.s7P53Axo057720@svn.freebsd.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <201408250503.s7P53Axo057720@svn.freebsd.org>
User-Agent: Mutt/1.5.23 (2014-03-12)
Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
 src-committers@freebsd.org
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 26 Aug 2014 08:10:36 -0000

On Mon, Aug 25, 2014 at 05:03:10AM +0000, Adrian Chadd wrote:
A> Author: adrian
A> Date: Mon Aug 25 05:03:10 2014
A> New Revision: 270516
A> URL: http://svnweb.freebsd.org/changeset/base/270516
A> 
A> Log:
A>   i915 driver - enable opregion handle; program CADL.
A>   
A>   add opregion handling for drm2 - which exposes some ACPI video configuration
A>   pieces that some Lenovo laptop models use to flesh out which video device
A>   to speak to.  This enables the brightness control in ACPI to work these models.
A>   
A>   The CADL bits are also important - it's used to figure out which ACPI
A>   events to hook the brightness buttons into.  It doesn't yet seem to work
A>   for me, but it does for the OP.
A>   
A>   Tested:
A>   
A>   * Lenovo X230 (mine)
A>   * OP: ASUS UX51VZ

Works on Lenovo X1 Carbon! Thanks a lot, Adrian and Henry!!!

-- 
Totus tuus, Glebius.