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Message-ID: <52399D0B.3010909@intel.com>
Date: Wed, 18 Sep 2013 20:31:07 +0800
From: Aaron Lu <aaron.lu@intel.com>
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To: Igor Gnatenko <i.gnatenko.brain@gmail.com>
CC: linux-acpi@vger.kernel.org, intel-gfx@lists.freedesktop.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Daniel Vetter <daniel@ffwll.ch>, "Rafael J. Wysocki" <rjw@sisk.pl>,
        Matthew Garrett <matthew.garrett@nebula.com>,
        Seth Forshee <seth.forshee@canonical.com>,
        Lee Chun-Yi <joeyli.kernel@gmail.com>,
        Richard Purdie <rpurdie@rpsys.net>,
        Yves-Alexis Perez <corsac@debian.org>,
        Felipe Contreras <felipe.contreras@gmail.com>,
        Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>,
        Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [PATCH v2 0/3] Fix Win8 backlight issue
References: <1379409796-29350-1-git-send-email-aaron.lu@intel.com>  <1379424853.3348.1.camel@ThinkPad-X230.localdomain>  <5238FBF5.8080405@intel.com> <1379485819.2294.1.camel@ThinkPad-X230.localdomain>
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On 09/18/2013 02:30 PM, Igor Gnatenko wrote:
> On Wed, 2013-09-18 at 09:03 +0800, Aaron Lu wrote:
>> On 09/17/2013 09:34 PM, Igor Gnatenko wrote:
>>>
>>> Aaron, how about fix indicator on ThinkPads ?
>>
>> Can you please describe the problem in detail, is it that when you
>> adjust brightness level through hotkey, there is no GUI indication?
>> Thanks.
>>
>> -Aaron
> 
> Yes. On my ThinkPad X230 I pressing backlight hotkeys. Actually
> brightnes changing, but have no indicator in GUI.

Oh, that's still the problem of _BCL not getting executed once for
Lenovo thinkpad laptops. I borrowed a Thinkpad X1 this afternoon and can
reproduce this, I'll take a look at this issue. The thinkpad-acpi module
already has a call to _BCL but somehow that doesn't happen.

Since it's national holidays here, I'll check this issue when I got back
to work on this Saturday. Thanks for the quick test :-)

-Aaron
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