From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751318AbdJBNGu (ORCPT ); Mon, 2 Oct 2017 09:06:50 -0400 Received: from esa4.dell-outbound.iphmx.com ([68.232.149.214]:8391 "EHLO esa4.dell-outbound.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbdJBNGs (ORCPT ); Mon, 2 Oct 2017 09:06:48 -0400 From: X-LoopCount0: from 10.166.132.195 X-IronPort-AV: E=Sophos;i="5.42,469,1500958800"; d="scan'208";a="1039106341" X-DLP: DLP_GlobalPCIDSS To: , CC: , , , , , Subject: RE: keyboard backlight max_brightness bug on Dell Latitude E6410 Thread-Topic: keyboard backlight max_brightness bug on Dell Latitude E6410 Thread-Index: AQHTOSzbTpiCJcsXHU+yuepgR1pf/6LMTkuAgAR9GoD//8BMgA== Date: Mon, 2 Oct 2017 13:06:46 +0000 Message-ID: <85b11afa464948a1abcede55b7f66a25@ausx13mpc120.AMER.DELL.COM> References: <20170929070823.669a95d04dbb6b53be537852cb8ecb8c.0314fabe33.wbe@email22.secureserver.net> <20170929141125.GO13546@pali> <20171002115247.GB10938@pali> In-Reply-To: <20171002115247.GB10938@pali> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.143.242.75] Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 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 nfs id v92D6sn6018360 > -----Original Message----- > From: Pali Rohár [mailto:pali.rohar@gmail.com] > Sent: Monday, October 2, 2017 6:53 AM > To: Andy Shevchenko > Cc: Gabriel M. Elder ; Gabriele Mazzotta > ; Limonciello, Mario ; > Darren Hart ; Andy Shevchenko ; > platform-driver-x86@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: keyboard backlight max_brightness bug on Dell Latitude E6410 > > On Friday 29 September 2017 18:19:59 Andy Shevchenko wrote: > > >> FYI, latest update and info relating to > > >> https://bugzilla.kernel.org/show_bug.cgi?id=196913 > > > > Quick solution is to apply DMI to that. > > It is only the Dell Latitude E6410 affected? > > Mario, do you have any information about that API from Dell? > > -- > Pali Rohár > pali.rohar@gmail.com Pali, I believe this particular API shouldn't have changed over generations, so it's likely something that needs to be quirked for that generation. I haven't had a chance to check on this yet in detail though. For now could you guys quirk this one and if I find out there was something more systemic we can undo the quirk and do something more broad. Thanks,