Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753267Ab3FJNsK (ORCPT ); Mon, 10 Jun 2013 09:48:10 -0400 Received: from mail-bn1lp0156.outbound.protection.outlook.com ([207.46.163.156]:35509 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752616Ab3FJNsI (ORCPT ); Mon, 10 Jun 2013 09:48:08 -0400 From: Matthew Garrett To: "Rafael J. Wysocki" CC: "linux-acpi@vger.kernel.org" , "seth.forshee@canonical.com" , "joeyli.kernel@gmail.com" , "daniel.vetter@ffwll.ch" , "intel-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "lenb@kernel.org" Subject: Re: [PATCH 0/3] Fix backlight issues on some Windows 8 systems Thread-Topic: [PATCH 0/3] Fix backlight issues on some Windows 8 systems Thread-Index: AQHOZdCy0C608TgzZU6JwZlMJ4ewq5ku9p+A Date: Mon, 10 Jun 2013 13:48:04 +0000 Message-ID: <1370872083.9178.2.camel@x230.lan> References: <1370818899-8595-1-git-send-email-matthew.garrett@nebula.com> <1714928.Kf7sBtKE1o@vostro.rjw.lan> In-Reply-To: <1714928.Kf7sBtKE1o@vostro.rjw.lan> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.255.84.4] x-forefront-antispam-report: SFV:SKI;SFS:;DIR:OUT;SFP:;SCL:-1;SRVR:BY2PR05MB222;H:BY2PR05MB222.namprd05.prod.outlook.com;LANG:en; Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 X-OriginatorOrg: nebula.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id r5ADmGYZ004751 Content-Length: 900 Lines: 19 On Mon, 2013-06-10 at 13:59 +0200, Rafael J. Wysocki wrote: > I happen to know that alternative solution to this problem is being worked on, > so I'm going to wait until it is submitted and then we'll decide what to merge. Sure. > I'm slightly concerned about unregistering ACPI backlight control for all > systems declaring win8 support, even though it may actually work for them. Right, that's why I think it's correct to leave it up to the graphics drivers. It seems like they're the ones that make the policy determination under Windows now. The policy as implemented here may not be correct, but doing better would probably involve Intel letting us know how their Windows driver behaves. -- Matthew Garrett | mjg59@srcf.ucam.org ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?