linux-kernel - Re: [PATCH] fix backlight brightness on intel LVDS panel after reopening lid

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Date:	Sat, 5 Mar 2011 00:32:40 +0100 (CET)
From:	"Indan Zupancic" <indan@....nu>
To:	"Linus Torvalds" <torvalds@...ux-foundation.org>
Cc:	"Alex Riesen" <raa.lkml@...il.com>,
	"Jesse Barnes" <jbarnes@...tuousgeek.org>,
	"DRI mailing list" <dri-devel@...ts.freedesktop.org>,
	"Chris Wilson" <chris@...is-wilson.co.uk>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Tino Keitel" <tino.keitel@...ei.de>, stable@...nel.org
Subject: Re: [PATCH] fix backlight brightness on intel LVDS panel after 
     reopening lid

On Fri, March 4, 2011 19:47, Linus Torvalds wrote:
> Alex, can you confirm that the revert of 951f3512dba5 plus the
> one-liner patch from Takashi that Indan quoted also works for you?
>
>               Linus
>
> On Thu, Mar 3, 2011 at 10:53 PM, Indan Zupancic <indan@....nu> wrote:
>>
>> So please revert my patch and apply Takashi Iwai's, which fixes the
>> most immediate bug without changing anything else. This should go
>> in stable too.
>

For what it's worth, doing the above does prevent the regression for the
ASLE case, but for me with gen 2 hardware the brightness isn't quite
right after suspend/resume, while it is with my patch applied. So
assuming that there are no gen 2 systems with ASLE out there, the best
solution may be the remove the combination mode check for gen 2 hardware
and leave it for gen >=4. Would be nice if Jesse or Chris could confirm
that there are no gen 2 ASLE systems out there though.

I'm going camping, I'll send a patch next week.

Greetings,

Indan



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