[Bug 75001] [945gm] ACPI Brightness adjustment is broken in 945GM with kernel 3.14-rc2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75001

--- Comment #7 from Luis Ortega <luiorpe1 at gmail.com> ---
This patch corrects the issue. The Fn keys work as expected and I can again
change the brightness. In more detail:

su -c "echo N > /sys/class/backlight/eeepc/brightness" changes the brightness
and catting the file reports the new value.

su -c "echo N > /sys/class/backlight/intel_backlight/brightness" changes the
brightness and catting the file reports the new value.

BTW, I've noticed that the values reported by
/sys/class/backlight/intel_backlight/brightness are much higher than
previously. Booting in 3.13 and 3.14-rc2 I get the value 156, which equals that
of max_brightness though I actually have my screen dimmed. With your patch I
get the value 7800 and a max_brightness of 39780.

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