From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030282Ab2CVF4F (ORCPT ); Thu, 22 Mar 2012 01:56:05 -0400 Received: from mail-ob0-f174.google.com ([209.85.214.174]:56799 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755132Ab2CVF4B convert rfc822-to-8bit (ORCPT ); Thu, 22 Mar 2012 01:56:01 -0400 MIME-Version: 1.0 In-Reply-To: <1332388489.10557.406.camel@linux-s257.site> References: <1331608337.2267.67.camel@debian.Gayathri> <20120312175130.GA18002@srcf.ucam.org> <1331640592.3485.50.camel@debian.Gayathri> <20120313124738.GB10822@srcf.ucam.org> <20120313133458.GA11574@srcf.ucam.org> <1331688294.2577.19.camel@debian.Gayathri> <1331680373.10557.169.camel@linux-s257.site> <1331692996.3052.8.camel@debian.Gayathri> <1331704278.10557.190.camel@linux-s257.site> <1331798740.10557.245.camel@linux-s257.site> <1332047432.6304.13.camel@debian.Gayathri> <1332122514.10557.270.camel@linux-s257.site> <1332241764.10557.329.camel@linux-s257.site> <1332269710.3921.31.camel@debian.Gayathri> <1332298845.10557.343.camel@linux-s257.site> <1332356993.3103.23.camel@debian.Gayathri> <1332380037.10557.398.camel@linux-s257.site> <1332383623.2622.6.camel@debian.Gayathri> <1332386725.10557.402.camel@linux-s257.site> <1332387122.2622.9.camel@debian.Gayathri> <1332388489.10557.406.camel@linux-s257.site> Date: Thu, 22 Mar 2012 11:26:00 +0530 Message-ID: Subject: Re: [PATCH] Added backlight driver for Acer Aspire 4736 From: Pradeep Subrahmanion To: joeyli Cc: Matthew Garrett , rpurdie@rpsys.net, FlorianSchandinat@gmx.de, akpm@linux-foundation.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>From acer acpi ,I came to know that the 4730 series uses new wmi interface . http://code.google.com/p/aceracpi/wiki/SupportedHardware Thanks , Pradeep Subrahmanion On Thu, Mar 22, 2012 at 9:24 AM, joeyli wrote: > 於 四，2012-03-22 於 09:02 +0530，Pradeep Subrahmanion 提到： >> On Thu, 2012-03-22 at 11:25 +0800, joeyli wrote: >> > 於 四，2012-03-22 於 08:03 +0530，Pradeep Subrahmanion 提到： >> > > On Thu, 2012-03-22 at 09:33 +0800, joeyli wrote: >> > > > 於 四，2012-03-22 於 00:39 +0530，Pradeep Subrahmanion 提到： >> > > > > > This new patch should remove acpi_video0 interface on your machine. >> > > > > > Please kindly provide your dmidecode: >> > > > > > dmidecode > dmidecode.log >> > > > > > >> > > > > > And, >> > > > > > please make should the patch really applied, you can do a bit change on >> > > > > > pr_info message by yourself. >> > > > > >> > > > > Sorry . I think there was some mistake . I tried the patch again. Now >> > > > > I see only intel_backlight inside /sys/class/backlight. There is no >> > > > > acer-wmi interface . Is this the expected behavior ? . Or am I missing >> > > > > anything ? >> > > > > >> > > > >> > > > Yes, this is the expected behavior! But, now I doubt your issue was >> > > > workaround by acpi_osi=Linux but not intel_backlight. >> > > > >> > > >> > > > > >> > > > > >> > > > > > >> > > > > > > echo 5 > /sys/class/backlight/acpi_video0/brightness >> > > > > > > echo 5 > /sys/class/backlight/intel_backlight/brightness >> > > > > > > >> > > > > > > But it doesn't make any change . >> > > > > > > >> > > > > > > In my case , 'acpi_backlight = vendor' does not make any difference since the hot key control >> > > > > > > >> > > > > > > already starts working with 'acpi_osi=Linux' option. >> > > > > > > >> > > > > > > cat /proc/cmdline gives , >> > > > > > > >> > > > > > > BOOT_IMAGE=/boot/vmlinuz-3.3.0+ >> > > > > > > root=UUID=f0197a59-c067-4fd8-ad90-c4d721816077 ro acpi_osi=Linux >> > > > > > > >> > > > > > > >> > > > > > > Thanks , >> > > > > > > >> > > > > > > Pradeep Subrahmanion >> > > > > > > >> > > > > > >> > > > > > OK, that's more clearly, please remove acpi_osi=Linux then re-test, I >> > > > > > think the hotkey of backlight control only works with acpi_osi=Linux ? >> > > > > > >> > > > >> > > > Does your backlight control still work if you remove acpi_osi=Linux ? >> > > >> > > If I remove acpi_osi=Linux , the hot key control stops working . >> > > >> > >> > What is the preload OS in your machine when you bought it? Windows XP, >> > Vista or Windows 7? >> >> It was Windows XP. >> > > The WDDM driver didn't support by Windows XP, the brightness control on > XP should works with _BCM or OpRegion. > > Wonder how does brightness control work on XP with your machine. > > I will dig more in your dsdt... > > > Thanks > Joey Lee > From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pradeep Subrahmanion Date: Thu, 22 Mar 2012 05:57:21 +0000 Subject: Re: [PATCH] Added backlight driver for Acer Aspire 4736 Message-Id: List-Id: References: <1331608337.2267.67.camel@debian.Gayathri> <20120312175130.GA18002@srcf.ucam.org> <1331640592.3485.50.camel@debian.Gayathri> <20120313124738.GB10822@srcf.ucam.org> <20120313133458.GA11574@srcf.ucam.org> <1331688294.2577.19.camel@debian.Gayathri> <1331680373.10557.169.camel@linux-s257.site> <1331692996.3052.8.camel@debian.Gayathri> <1331704278.10557.190.camel@linux-s257.site> <1331798740.10557.245.camel@linux-s257.site> <1332047432.6304.13.camel@debian.Gayathri> <1332122514.10557.270.camel@linux-s257.site> <1332241764.10557.329.camel@linux-s257.site> <1332269710.3921.31.camel@debian.Gayathri> <1332298845.10557.343.camel@linux-s257.site> <1332356993.3103.23.camel@debian.Gayathri> <1332380037.10557.398.camel@linux-s257.site> <1332383623.2622.6.camel@debian.Gayathri> <1332386725.10557.402.camel@linux-s257.site> <1332387122.2622.9.camel@debian.Gayathri> <1332388489.10557.406.camel@linux-s257.site> In-Reply-To: <1332388489.10557.406.camel@linux-s257.site> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: joeyli Cc: Matthew Garrett , rpurdie@rpsys.net, FlorianSchandinat@gmx.de, akpm@linux-foundation.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org >From acer acpi ,I came to know that the 4730 series uses new wmi interface . http://code.google.com/p/aceracpi/wiki/SupportedHardware Thanks , Pradeep Subrahmanion On Thu, Mar 22, 2012 at 9:24 AM, joeyli wrote: > =A9=F3 =A5|=A1A2012-03-22 =A9=F3 09:02 +0530=A1APradeep Subrahmanion =B4= =A3=A8=EC=A1G >> On Thu, 2012-03-22 at 11:25 +0800, joeyli wrote: >> > =A9=F3 =A5|=A1A2012-03-22 =A9=F3 08:03 +0530=A1APradeep Subrahmanion = =B4=A3=A8=EC=A1G >> > > On Thu, 2012-03-22 at 09:33 +0800, joeyli wrote: >> > > > =A9=F3 =A5|=A1A2012-03-22 =A9=F3 00:39 +0530=A1APradeep Subrahmani= on =B4=A3=A8=EC=A1G >> > > > > > This new patch should remove acpi_video0 interface on your mac= hine. >> > > > > > Please kindly provide your dmidecode: >> > > > > > dmidecode > dmidecode.log >> > > > > > >> > > > > > And, >> > > > > > please make should the patch really applied, you can do a bit = change on >> > > > > > pr_info message by yourself. >> > > > > >> > > > > Sorry . I think there was some mistake . I tried the patch ag= ain. Now >> > > > > I see only intel_backlight inside /sys/class/backlight. There is= no >> > > > > acer-wmi interface . Is this the expected behavior ? . Or am I m= issing >> > > > > anything ? >> > > > > >> > > > >> > > > Yes, this is the expected behavior! But, now I doubt your issue was >> > > > workaround by acpi_osi=3DLinux but not intel_backlight. >> > > > >> > > >> > > > > >> > > > > >> > > > > > >> > > > > > > echo 5 > /sys/class/backlight/acpi_video0/brightness >> > > > > > > echo 5 > /sys/class/backlight/intel_backlight/brightness >> > > > > > > >> > > > > > > But it doesn't make any change . >> > > > > > > >> > > > > > > In my case , 'acpi_backlight =3D vendor' does not make any = difference since the hot key control >> > > > > > > >> > > > > > > already starts working with 'acpi_osi=3DLinux' option. >> > > > > > > >> > > > > > > cat /proc/cmdline gives , >> > > > > > > >> > > > > > > BOOT_IMAGE=3D/boot/vmlinuz-3.3.0+ >> > > > > > > root=3DUUID=F0197a59-c067-4fd8-ad90-c4d721816077 ro acpi_osi= =3DLinux >> > > > > > > >> > > > > > > >> > > > > > > Thanks , >> > > > > > > >> > > > > > > Pradeep Subrahmanion >> > > > > > > >> > > > > > >> > > > > > OK, that's more clearly, please remove acpi_osi=3DLinux then r= e-test, I >> > > > > > think the hotkey of backlight control only works with acpi_osi= =3DLinux ? >> > > > > > >> > > > >> > > > Does your backlight control still work if you remove acpi_osi=3DLi= nux ? >> > > >> > > If I remove acpi_osi=3DLinux , the hot key control stops working . >> > > >> > >> > What is the preload OS in your machine when you bought it? Windows XP, >> > Vista or Windows 7? >> >> It was Windows XP. >> > > The WDDM driver didn't support by Windows XP, the brightness control on > XP should works with _BCM or OpRegion. > > Wonder how does brightness control work on XP with your machine. > > I will dig more in your dsdt... > > > Thanks > Joey Lee >