Re: Linux 3.11-rc2 [backlight] [ASUS N56VZ]

From: Linus Torvalds
Date: Wed Jul 24 2013 - 16:39:49 EST

On Wed, Jul 24, 2013 at 12:39 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> Well, there seems to be a number of people who'll be equally unhappy if I don't
> do that. Unfortunately for you, things work for them without that patch.

So I think we have to revert the behavior back, but I wonder if we
could keep the logic and have a i915 kernel command line option to
enable it.

We did that for a long time with "drm.modeset" and the
"i915.enable_rc6" mess. We still have the "i915.invert_brightness"
thing, although I don't know who actually uses it. But that option is
itself an indication that the i915 driver still has some backlight

But if that kind of "revert behavior" isn't easy, we need to just
revert the patches entirely.

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