[Bug 63931] [7 Series] [Backlight] Incorrectly driver set backlight

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63931

--- Comment #12 from Igor <i.gnatenko.brain at gmail.com> ---
I tested again..
# echo 95 > /sys/class/backlight/acpi_video0/brightness
But in real life brightness of my monitor not change..
$ cat /sys/class/backlight/acpi_video0/brightness
95
$ xbacklight
100
$ cat /sys/class/backlight/acpi_video0/brightness
100
This happens with all the values ​​that are specified in the above attachment.

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