The new xserver-xorg-video-intel - 2:2.9.0-1ubuntu1 does make xbacklight _report_ the display brightness, but there is no way to actually change it using xbacklight/gnome-brightness-applet. This problem occurs a samsung x360 laptop.
The new xserver- xorg-video- intel - 2:2.9.0-1ubuntu1 does make xbacklight _report_ the display brightness, but there is no way to actually change it using xbacklight/ gnome-brightnes s-applet. This problem occurs a samsung x360 laptop.