5 0x6 switchvideomode # Fn+F7
6 0x7 f21 # Fn+F8 touchpadtoggle
9 0xF brightnessup # Fn+Home
10 0x10 brightnessdown # Fn+End
11 0x11 kbdillumtoggle # Fn+PgUp - ThinkLight
16 0x17 prog1 # ThinkPad/ThinkVantage button (high keycode: "vendor")
17 0x1A f20 # Microphone mute button; should be micmute, but see https://mail.gnome.org/archives/commits-list/2013-January/msg05822.html