From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?B?TWljaGHFgiBLxJlwaWXFhA==?= Subject: Re: Brightness and "touchpad dis-/enable" keys not working for Fujitsu e7x6 Date: Wed, 22 Jun 2016 09:15:17 +0200 Message-ID: <20160622071517.GC3056@eudyptula.hq.kempniu.pl> References: <575FC4E0.7080501@fbihome.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-lb0-f178.google.com ([209.85.217.178]:32797 "EHLO mail-lb0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750970AbcFVHQT (ORCPT ); Wed, 22 Jun 2016 03:16:19 -0400 Received: by mail-lb0-f178.google.com with SMTP id xp5so16905009lbb.0 for ; Wed, 22 Jun 2016 00:15:21 -0700 (PDT) Content-Disposition: inline In-Reply-To: <575FC4E0.7080501@fbihome.de> Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Jan-Marek Glogowski Cc: Jonathan Woithe , platform-driver-x86@vger.kernel.org > I recently got new Skylake hardware (e7x6) from Fujitsu. Compared to > previous Haswell generation (e7x4), some of the Fn+X key combination > stopped working. This includes the brightness and "touchpad dis-/enab= le" > key combinations. As you used the phrase "stopped working", I'm wondering whether you wer= e ever able to get ACPI brightness control to work on a Haswell machine? It seems to be broken on my Lifebook E744 (BIOS version 1.19): pressing the brightness keys causes acpi_fujitsu_notify() to call GBLL, which always returns the same brightness level, even though it sets the highest bit in its return value (which denotes a brightness change). Also, calling set_lcd_level() with various values causes the value subsequently returned by GBLL to change, but the actual screen brightness is identical all the time. > For the brightness control it's understandable, as this was handled b= y a > ACPI device FUJ02B1, which is no longer available. I don't know how t= he > touchpad disable key was actually working, as I don't get any scan co= des > or ACPI events in userspace - probably I'm missing something here. It looks like it is handled purely in hardware because I'm not getting any scan codes or ACPI events either on a Lifebook E744 and the hotkey works correctly. --=20 Best regards, Micha=C5=82 K=C4=99pie=C5=84