linux-kernel - Limited Brightness Values with apple

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Date:	Fri, 26 Aug 2011 14:33:58 +0200
From:	Bastien Dejean <eschyle@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Limited Brightness Values with apple_backlight on an iMac 10,1

Hi,

Since 2.6.39 I have a /sys/class/backlight/apple_backlight/ interface
and I can change the brightness by echoing values to the relevant
brightness file.

That's great but there's a little problem:

On the 256 levels of brightness that my screen supports, I can only reach
16 of the 128 upper values. It means that the lowest brightness I can
access on Linux is at 50% of the real maximum brightness.

Thanks,
-- 
Bastien
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