Backlight worked out of box for me on an install I did late Feb 2013 with XFCE4. Bobpaul (talk) 19:41, 6 March 2013 (UTC)
Backlight also worked out of the box for me.
Also, the microphone mute button does generate a keycode on my T430s (which I handle with xbindkeys to mute Capture). --HeptaSean (talk) 22:18, 16 April 2013 (UTC)