forwarded 451847 https://bugs.freedesktop.org/show_bug.cgi?id=13375
thank you
Joey Hess wrote:
> Package: xserver-xorg-video-intel
> Version: 2:2.2.0-1
> Severity: normal
>
> LVDS Laptop panel. Properties:
> BACKLIGHT - set backlight level
> BACKLIGHT_CONTROL - set backlight level control method (i.e.
> use kernel interfaces, native LVDS power register, legacy reg‐
> ister, or combination)
>
> It's hard to figure out from this documentation what value should be passed
> to xrandr to enable the different backlight control methods. It turns out
> to be the first word of each phrase ("kernel", "native", "legacy", or
> "combination").
>
Forwarded upstream at the URL above.
Brice