From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030964Ab2CVJgm (ORCPT ); Thu, 22 Mar 2012 05:36:42 -0400 Received: from charybdis-ext.suse.de ([195.135.221.2]:28402 "EHLO nat.nue.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756566Ab2CVJgh (ORCPT ); Thu, 22 Mar 2012 05:36:37 -0400 Subject: Re: [PATCH] Added backlight driver for Acer Aspire 4736 From: joeyli To: Pradeep Subrahmanion Cc: Matthew Garrett , rpurdie@rpsys.net, FlorianSchandinat@gmx.de, akpm@linux-foundation.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: 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> Content-Type: text/plain; charset="UTF-8" Date: Thu, 22 Mar 2012 17:34:41 +0800 Message-ID: <1332408881.10557.416.camel@linux-s257.site> Mime-Version: 1.0 X-Mailer: Evolution 2.28.2 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 於 四，2012-03-22 於 11:26 +0530，Pradeep Subrahmanion 提到： > >From acer acpi ,I came to know that the 4730 series uses new wmi interface . > > http://code.google.com/p/aceracpi/wiki/SupportedHardware > I am not sure what is the WMIDv2, but it's not the current WMI v2 in acer-wmi driver. > 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... > > > > Please kindly try acpi_osi="!Windows 2006", I think it also works to you. Thanks Joey Lee From mboxrd@z Thu Jan 1 00:00:00 1970 From: joeyli Date: Thu, 22 Mar 2012 09:34:41 +0000 Subject: Re: [PATCH] Added backlight driver for Acer Aspire 4736 Message-Id: <1332408881.10557.416.camel@linux-s257.site> 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: MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1254" Content-Transfer-Encoding: base64 To: Pradeep Subrahmanion Cc: Matthew Garrett , rpurdie@rpsys.net, FlorianSchandinat@gmx.de, akpm@linux-foundation.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org 5pa8IOWbm++8jDIwMTItMDMtMjIg5pa8IDExOjI2ICswNTMw77yMUHJhZGVlcCBTdWJyYWhtYW5p b24g5o+Q5Yiw77yaCj4gPkZyb20gYWNlciBhY3BpICxJIGNhbWUgdG8ga25vdyB0aGF0IHRoZSA0 NzMwIHNlcmllcyB1c2VzIG5ldyB3bWkgaW50ZXJmYWNlIC4KPiAKPiBodHRwOi8vY29kZS5nb29n bGUuY29tL3AvYWNlcmFjcGkvd2lraS9TdXBwb3J0ZWRIYXJkd2FyZQo+IAoKSSBhbSBub3Qgc3Vy ZSB3aGF0IGlzIHRoZSBXTUlEdjIsIGJ1dCBpdCdzIG5vdCB0aGUgY3VycmVudCBXTUkgdjIgaW4K YWNlci13bWkgZHJpdmVyLgoKPiBUaGFua3MgLAo+IAo+IFByYWRlZXAgU3VicmFobWFuaW9uCj4g Cj4gT24gVGh1LCBNYXIgMjIsIDIwMTIgYXQgOToyNCBBTSwgam9leWxpIDxqbGVlQHN1c2UuY29t PiB3cm90ZToKPiA+IOaWvCDlm5vvvIwyMDEyLTAzLTIyIOaWvCAwOTowMiArMDUzMO+8jFByYWRl ZXAgU3VicmFobWFuaW9uIOaPkOWIsO+8mgo+ID4+IE9uIFRodSwgMjAxMi0wMy0yMiBhdCAxMToy NSArMDgwMCwgam9leWxpIHdyb3RlOgo+ID4+ID4g5pa8IOWbm++8jDIwMTItMDMtMjIg5pa8IDA4 OjAzICswNTMw77yMUHJhZGVlcCBTdWJyYWhtYW5pb24g5o+Q5Yiw77yaCj4gPj4gPiA+IE9uIFRo dSwgMjAxMi0wMy0yMiBhdCAwOTozMyArMDgwMCwgam9leWxpIHdyb3RlOgo+ID4+ID4gPiA+IOaW vCDlm5vvvIwyMDEyLTAzLTIyIOaWvCAwMDozOSArMDUzMO+8jFByYWRlZXAgU3VicmFobWFuaW9u IOaPkOWIsO+8mgo+ID4+ID4gPiA+ID4gPiBUaGlzIG5ldyBwYXRjaCBzaG91bGQgcmVtb3ZlIGFj cGlfdmlkZW8wIGludGVyZmFjZSBvbiB5b3VyIG1hY2hpbmUuCj4gPj4gPiA+ID4gPiA+IFBsZWFz ZSBraW5kbHkgcHJvdmlkZSB5b3VyIGRtaWRlY29kZToKPiA+PiA+ID4gPiA+ID4gIGRtaWRlY29k ZSA+IGRtaWRlY29kZS5sb2cKPiA+PiA+ID4gPiA+ID4KPiA+PiA+ID4gPiA+ID4gQW5kLAo+ID4+ ID4gPiA+ID4gPiBwbGVhc2UgbWFrZSBzaG91bGQgdGhlIHBhdGNoIHJlYWxseSBhcHBsaWVkLCB5 b3UgY2FuIGRvIGEgYml0IGNoYW5nZSBvbgo+ID4+ID4gPiA+ID4gPiBwcl9pbmZvIG1lc3NhZ2Ug YnkgeW91cnNlbGYuCj4gPj4gPiA+ID4gPgo+ID4+ID4gPiA+ID4gICAgU29ycnkgLiBJIHRoaW5r IHRoZXJlIHdhcyBzb21lIG1pc3Rha2UgLiBJIHRyaWVkIHRoZSBwYXRjaCBhZ2Fpbi4gTm93Cj4g Pj4gPiA+ID4gPiBJIHNlZSBvbmx5IGludGVsX2JhY2tsaWdodCBpbnNpZGUgL3N5cy9jbGFzcy9i YWNrbGlnaHQuIFRoZXJlIGlzIG5vCj4gPj4gPiA+ID4gPiBhY2VyLXdtaSBpbnRlcmZhY2UgLiBJ cyB0aGlzIHRoZSBleHBlY3RlZCBiZWhhdmlvciA/IC4gT3IgYW0gSSBtaXNzaW5nCj4gPj4gPiA+ ID4gPiBhbnl0aGluZyA/Cj4gPj4gPiA+ID4gPgo+ID4+ID4gPiA+Cj4gPj4gPiA+ID4gWWVzLCB0 aGlzIGlzIHRoZSBleHBlY3RlZCBiZWhhdmlvciEgQnV0LCBub3cgSSBkb3VidCB5b3VyIGlzc3Vl IHdhcwo+ID4+ID4gPiA+IHdvcmthcm91bmQgYnkgYWNwaV9vc2k9TGludXggYnV0IG5vdCBpbnRl bF9iYWNrbGlnaHQuCj4gPj4gPiA+ID4KPiA+PiA+ID4KPiA+PiA+ID4gPiA+Cj4gPj4gPiA+ID4g Pgo+ID4+ID4gPiA+ID4gPgo+ID4+ID4gPiA+ID4gPiA+IGVjaG8gNSA+IC9zeXMvY2xhc3MvYmFj a2xpZ2h0L2FjcGlfdmlkZW8wL2JyaWdodG5lc3MKPiA+PiA+ID4gPiA+ID4gPiBlY2hvIDUgPiAv c3lzL2NsYXNzL2JhY2tsaWdodC9pbnRlbF9iYWNrbGlnaHQvYnJpZ2h0bmVzcwo+ID4+ID4gPiA+ ID4gPiA+Cj4gPj4gPiA+ID4gPiA+ID4gQnV0IGl0IGRvZXNuJ3QgbWFrZSBhbnkgY2hhbmdlIC4K PiA+PiA+ID4gPiA+ID4gPgo+ID4+ID4gPiA+ID4gPiA+IEluIG15IGNhc2UgICwgJ2FjcGlfYmFj a2xpZ2h0ID0gdmVuZG9yJyBkb2VzIG5vdCBtYWtlIGFueSBkaWZmZXJlbmNlIHNpbmNlIHRoZSBo b3Qga2V5IGNvbnRyb2wKPiA+PiA+ID4gPiA+ID4gPgo+ID4+ID4gPiA+ID4gPiA+IGFscmVhZHkg c3RhcnRzIHdvcmtpbmcgd2l0aCAnYWNwaV9vc2k9TGludXgnIG9wdGlvbi4KPiA+PiA+ID4gPiA+ ID4gPgo+ID4+ID4gPiA+ID4gPiA+IGNhdCAvcHJvYy9jbWRsaW5lIGdpdmVzICwKPiA+PiA+ID4g PiA+ID4gPgo+ID4+ID4gPiA+ID4gPiA+IEJPT1RfSU1BR0U9L2Jvb3Qvdm1saW51ei0zLjMuMCsK PiA+PiA+ID4gPiA+ID4gPiByb290PVVVSUTwMTk3YTU5LWMwNjctNGZkOC1hZDkwLWM0ZDcyMTgx NjA3NyBybyBhY3BpX29zaT1MaW51eAo+ID4+ID4gPiA+ID4gPiA+Cj4gPj4gPiA+ID4gPiA+ID4K PiA+PiA+ID4gPiA+ID4gPiBUaGFua3MgLAo+ID4+ID4gPiA+ID4gPiA+Cj4gPj4gPiA+ID4gPiA+ ID4gUHJhZGVlcCBTdWJyYWhtYW5pb24KPiA+PiA+ID4gPiA+ID4gPgo+ID4+ID4gPiA+ID4gPgo+ ID4+ID4gPiA+ID4gPiBPSywgdGhhdCdzIG1vcmUgY2xlYXJseSwgcGxlYXNlIHJlbW92ZSBhY3Bp X29zaT1MaW51eCB0aGVuIHJlLXRlc3QsIEkKPiA+PiA+ID4gPiA+ID4gdGhpbmsgdGhlIGhvdGtl eSBvZiBiYWNrbGlnaHQgY29udHJvbCBvbmx5IHdvcmtzIHdpdGggYWNwaV9vc2k9TGludXggPwo+ ID4+ID4gPiA+ID4gPgo+ID4+ID4gPiA+Cj4gPj4gPiA+ID4gRG9lcyB5b3VyIGJhY2tsaWdodCBj b250cm9sIHN0aWxsIHdvcmsgaWYgeW91IHJlbW92ZSBhY3BpX29zaT1MaW51eCA/Cj4gPj4gPiA+ Cj4gPj4gPiA+ICAgIElmIEkgcmVtb3ZlIGFjcGlfb3NpPUxpbnV4ICwgdGhlIGhvdCBrZXkgY29u dHJvbCBzdG9wcyB3b3JraW5nIC4KPiA+PiA+ID4KPiA+PiA+Cj4gPj4gPiBXaGF0IGlzIHRoZSBw cmVsb2FkIE9TIGluIHlvdXIgbWFjaGluZSB3aGVuIHlvdSBib3VnaHQgaXQ/IFdpbmRvd3MgWFAs Cj4gPj4gPiBWaXN0YSBvciBXaW5kb3dzIDc/Cj4gPj4KPiA+PiAgICBJdCB3YXMgV2luZG93cyBY UC4KPiA+Pgo+ID4KPiA+IFRoZSBXRERNIGRyaXZlciBkaWRuJ3Qgc3VwcG9ydCBieSBXaW5kb3dz IFhQLCB0aGUgYnJpZ2h0bmVzcyBjb250cm9sIG9uCj4gPiBYUCBzaG91bGQgd29ya3Mgd2l0aCBf QkNNIG9yIE9wUmVnaW9uLgo+ID4KPiA+IFdvbmRlciBob3cgZG9lcyBicmlnaHRuZXNzIGNvbnRy b2wgd29yayBvbiBYUCB3aXRoIHlvdXIgbWFjaGluZS4KPiA+Cj4gPiBJIHdpbGwgZGlnIG1vcmUg aW4geW91ciBkc2R0Li4uCj4gPgo+ID4KClBsZWFzZSBraW5kbHkgdHJ5IGFjcGlfb3NpPSIhV2lu ZG93cyAyMDA2IiwgSSB0aGluayBpdCBhbHNvIHdvcmtzIHRvCnlvdS4KCgpUaGFua3MKSm9leSBM ZWUKCi0tClRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1 YnNjcmliZSBsaW51eC1mYmRldiIgaW4KdGhlIGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9t b0B2Z2VyLmtlcm5lbC5vcmcKTW9yZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2Vy bmVsLm9yZy9tYWpvcmRvbW8taW5mby5odG1s