[Bug 79146] i3-3227U's HD4000 fails to work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79146

--- Comment #4 from Shen Li <etkids at 163.com> ---
(In reply to comment #3)
> Please try video.use_native_backlight=1 module parameter.

Well after add this to grub, I still can't get it work without nomodeset.
Actually, this parameter disabled the shortcuts that was able to change the
backlight without nomodeset

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