From owner-freebsd-mobile@FreeBSD.ORG Fri Jun 11 00:48:13 2010 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5CDD4106567A for ; Fri, 11 Jun 2010 00:48:13 +0000 (UTC) (envelope-from dan@obluda.cz) Received: from fw.ax.cz (fw.ax.cz [79.98.73.117]) by mx1.freebsd.org (Postfix) with ESMTP id CB7C38FC12 for ; Fri, 11 Jun 2010 00:48:12 +0000 (UTC) Received: from [127.0.0.1] (vlasta.hide.ax.cz [172.20.1.4]) by fw.ax.cz (8.14.3/8.14.3) with ESMTP id o5B0Rip7082113; Fri, 11 Jun 2010 02:27:45 +0200 (CEST) (envelope-from dan@obluda.cz) Message-ID: <4C1182F9.1040608@obluda.cz> Date: Fri, 11 Jun 2010 02:27:37 +0200 From: Dan Lukes Organization: SISAL, MFF UK User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.9) Gecko/20100317 SeaMonkey/2.0.4 MIME-Version: 1.0 To: David DEMELIER References: <201004031619.o33GJBHd043318@freefall.freebsd.org> <4BB868E3.50206@obluda.cz> <4BB8D649.4020608@obluda.cz> <4BB98CB0.6090108@obluda.cz> <4BBA0AEE.7030606@obluda.cz> <4BBA10A0.9050700@obluda.cz> <4BBA1BC1.1080002@obluda.cz> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 100610-1, 10.06.2010), Outbound message X-Antivirus-Status: Clean Cc: freebsd-mobile@freebsd.org Subject: Re: kern/145306: [acpi]: Can't change brightness on HP ProBook 4510s X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jun 2010 00:48:13 -0000 David DEMELIER wrote: >>>>> I got a big output in dmesg but still no message when pressing fn-keys. >> Then no good news. I can't help you. Your BIOS doesn't create the >> notification required by ACPI specification section B.7 > Just one information I noticed today : when booting without ACPI > enabled (it does not boot it stops at a certain point (can't > remember)) I can change the brightness With no ACPI the brightness may remain driven by BIOS. With ACPI the responsibility may be switched to OS, but the interface doesn't follow ACPI specification section B.7. I assume there is a proprietary interface to do it. Or proprietary initialization that turn on standard interface, at least. > maybe there is a problem between freebsd ACPI <-> the laptop screen Maybe. You got some notifications but not those related to brightness keys. I doesn't assume there is problem with receiving one type of ACPI notification while other can be received with no problem ... Dan