From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH 0/3] Fix backlight issues on some Windows 8 systems 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> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1714928.Kf7sBtKE1o@vostro.rjw.lan> Content-Language: en-US Content-ID: Sender: linux-kernel-owner@vger.kernel.org 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" List-Id: linux-acpi@vger.kernel.org T24gTW9uLCAyMDEzLTA2LTEwIGF0IDEzOjU5ICswMjAwLCBSYWZhZWwgSi4gV3lzb2NraSB3cm90 ZToNCg0KPiBJIGhhcHBlbiB0byBrbm93IHRoYXQgYWx0ZXJuYXRpdmUgc29sdXRpb24gdG8gdGhp cyBwcm9ibGVtIGlzIGJlaW5nIHdvcmtlZCBvbiwNCj4gc28gSSdtIGdvaW5nIHRvIHdhaXQgdW50 aWwgaXQgaXMgc3VibWl0dGVkIGFuZCB0aGVuIHdlJ2xsIGRlY2lkZSB3aGF0IHRvIG1lcmdlLg0K DQpTdXJlLg0KDQo+IEknbSBzbGlnaHRseSBjb25jZXJuZWQgYWJvdXQgdW5yZWdpc3RlcmluZyBB Q1BJIGJhY2tsaWdodCBjb250cm9sIGZvciBhbGwNCj4gc3lzdGVtcyBkZWNsYXJpbmcgd2luOCBz dXBwb3J0LCBldmVuIHRob3VnaCBpdCBtYXkgYWN0dWFsbHkgd29yayBmb3IgdGhlbS4NCg0KUmln aHQsIHRoYXQncyB3aHkgSSB0aGluayBpdCdzIGNvcnJlY3QgdG8gbGVhdmUgaXQgdXAgdG8gdGhl IGdyYXBoaWNzDQpkcml2ZXJzLiBJdCBzZWVtcyBsaWtlIHRoZXkncmUgdGhlIG9uZXMgdGhhdCBt YWtlIHRoZSBwb2xpY3kNCmRldGVybWluYXRpb24gdW5kZXIgV2luZG93cyBub3cuIFRoZSBwb2xp Y3kgYXMgaW1wbGVtZW50ZWQgaGVyZSBtYXkgbm90DQpiZSBjb3JyZWN0LCBidXQgZG9pbmcgYmV0 dGVyIHdvdWxkIHByb2JhYmx5IGludm9sdmUgSW50ZWwgbGV0dGluZyB1cw0Ka25vdyBob3cgdGhl aXIgV2luZG93cyBkcml2ZXIgYmVoYXZlcy4NCg0KLS0gDQpNYXR0aGV3IEdhcnJldHQgfCBtamc1 OUBzcmNmLnVjYW0ub3JnDQo= From mboxrd@z Thu Jan 1 00:00:00 1970 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 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++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I