From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751241AbdJBNPp (ORCPT ); Mon, 2 Oct 2017 09:15:45 -0400 Received: from mail-wm0-f47.google.com ([74.125.82.47]:49084 "EHLO mail-wm0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751065AbdJBNPn (ORCPT ); Mon, 2 Oct 2017 09:15:43 -0400 X-Google-Smtp-Source: AOwi7QDCRKafPho6hh7n1J8MfyLHqmilWQr+uegGicbe4EDjgoBgRILYt6VZq+FBzgZVwOqXD0HdAA== Date: Mon, 2 Oct 2017 15:15:40 +0200 From: Pali =?utf-8?B?Um9ow6Fy?= To: gabriel@tekgnowsys.com Cc: andy.shevchenko@gmail.com, gabriel@tekgnowsys.com, gabriele.mzt@gmail.com, dvhart@infradead.org, andy@infradead.org, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Mario.Limonciello@dell.com Subject: Re: keyboard backlight max_brightness bug on Dell Latitude E6410 Message-ID: <20171002131540.GE10938@pali> References: <20170929070823.669a95d04dbb6b53be537852cb8ecb8c.0314fabe33.wbe@email22.secureserver.net> <20170929141125.GO13546@pali> <20171002115247.GB10938@pali> <85b11afa464948a1abcede55b7f66a25@ausx13mpc120.AMER.DELL.COM> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <85b11afa464948a1abcede55b7f66a25@ausx13mpc120.AMER.DELL.COM> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 02 October 2017 13:06:46 Mario.Limonciello@dell.com wrote: > > -----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, Ok! Gabriel, can you provide us your DMI information about your machine? They are included in following files: /sys/class/dmi/id/sys_vendor /sys/class/dmi/id/product_name Beware that they may contain whitespace characters and it is important. -- Pali Rohár pali.rohar@gmail.com