From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [v3.20] ACPI backlight problem
Date: Tue, 24 Feb 2015 00:18:41 +0100
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To: =?ISO-8859-1?Q?J=F6rg?= Otte <jrg.otte@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>, ACPI Devel Maling List <linux-acpi@vger.kernel.org>, Linus Torvalds <torvalds@linux-foundation.org>
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On Sunday, February 22, 2015 05:53:11 PM J=C3=B6rg Otte wrote:
> When I press backlight keys then normally OSD is shown and
> backlight follows immediately the keystrokes step by step.

That's how it works in 3.19, right?

> Now in v3.20 it behaves different:
> When I press backlight keys at first nothing happens. If I watch a
> video it is being stopped.
> After some seconds OSD is shown, backlight changes - in one step - to
> the new level and video continues.

So what machine is that?

Rafael