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Bug#681743: i915: display backlight brightness initially set to zero on boot

Tested 3.5.0-rc7+, boots up the same way, with the backlight off. Adding
i915.invert_brightness=1 makes it turn the brightness up to the maximum
as expected, however this is pretty ugly. Without this parameter, I can
just turn the brightness up with the fn keys and I get the nice
on-screen indicator from GNOME. However with invert_brightness I need to
turn it _up_, with the indicator showing it going up, in order to get it
down, and vice versa.
Anyway, I guess the desired result is that it should "just work" without
having to do special workarounds.

On Mon, 2012-07-16 at 06:45 -0500, Jonathan Nieder wrote:
> Those commits are both in 3.5-rc1,
> so if you get a chance to test 3.5-rc1 or newer, that would also be
> useful.

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