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Date:	Wed, 5 Oct 2011 14:59:36 -0700 (PDT)
From:	Alex Davis <alex14641@...oo.com>
To:	Keith Packard <keithp@...thp.com>,
	"terraluna977@...il.com" <terraluna977@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg@...hat.com>
Subject: Re:  Regression: i915 blank issue on kernel 3.1.0-rc3

.From: Keith Packard <keithp@...thp.com>
>> The patch I sent in a previous message in this thread makes it work correctly.
>> If I added an explanation and a 'Signed-by' line, could someone pick it up?
>
>It would almost certainly break some other machine. We could, of course,
>use a quirk to make your machine work, but that's something of a
>last-resort as it won't fix any other machines.

>> Yes, but I have no backlight control: the screen is too bright to look at comfortably.
This sounds whiny. I'm sorry about that.

>Ok, so the new native backlight driver works, but conflicts with your
>previous backlight driver (whatever that was).
It does not conflict. The previous backlight driver, dell_backlight, is still present 
on my machine; it just doesn't work, and never did.

> Adding support for the native backlight driver (Matthew's patch) and disabling the old
>backlight mechanisms makes everything better. Right?
No. The patch is against the native backlight code; it's not necessary to disable
the other backlight.

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