[ltp] Backlight on X1C3 on Archlinux

[Kai Hendry]

Hi there,

My new Thinkpad X1C3 mostly works on Archlinux except for the backlight
/ brightness controls.
http://natalian.org/archives/2015/02/18/Archlinux_on_a_Lenovo_X1C3/

I noticed systemd-backlight@backlight:intel_backlight.service. I think
that's just to save the current value.

I think I have the latest thinkpad module running.
http://ix.io/h7H

Still the brightness buttons don't work.

Should I just bind F5, F6 to xbacklight -dev 5 & xbacklight -inc 5
respectively?


Thanks!