linux-kernel - Re: Re: [Regression] 4.3.0rc4 through rc7: No LCD backlight on Thinkpad T60P

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Date:	Fri, 30 Oct 2015 07:55:09 -0600
From:	"Simon Wood" <simon@...gewell.org>
To:	"Simon Wood" <simon@...gewell.org>
Cc:	"Michel DÃ¤nzer" <michel@...nzer.net>,
	"Simon Wood" <simon@...gewell.org>, linux-kernel@...r.kernel.org,
	"Ville SyrjÃ¤lÃ¤" 
	<ville.syrjala@...ux.intel.com>, "Samuel Ortiz" <samuel@...tiz.org>
Subject: Re: Re: [Regression] 4.3.0rc4 through rc7: No LCD backlight on
 Thinkpad T60P

On Thu, October 29, 2015 8:39 pm, Simon Wood wrote:
> On Thu, October 29, 2015 6:50 pm, Michel DÃ¤nzer wrote:
>
>
>>>> So problem (no LCD backlight) must have been introduced between
>>>> those.
>>>
>>> Well this looks like it might have something to do with it.... will
>>> attempt a build just before it. -- commit
>>> 4281f46ef839050d2ef60348f661eb463c21cc2e Author: Michel DÃ¤nzer
>>> <michel.daenzer@....com>
>>> Date:   Mon Sep 28 18:16:31 2015 +0900
>>>
>>>
>>>
>>> drm/radeon: Restore LCD backlight level on resume (>= R5xx)
>>>
>>>
>>
>> Please try the patches from
>> http://lists.freedesktop.org/archives/dri-devel/2015-October/093514.html
>>
>
> Awesome sauce!
>
>
> 4281f46ef839050d2ef60348f661eb463c21cc2e + 2 patches works (backlight is
> lit).
>
> BTW my GFX is:
> 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> RV530/M56 GL [Mobility FireGL V5200]
>
>
> Patches apply cleanly to Master too, will build overnight and test first
> thing tomorrow, Simon

Confirmed the patches work with master/rc7, backlight is working!

So the big question is whether we can get these included in 4.3 final...?
Simon.


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