0x1 screenlock # Fn+F2
0x2 battery # Fn+F3
0x3 sleep # Fn+F4
0x4 wlan # Fn+F5
0x6 switchvideomode # Fn+F7
0x7 f21 # Fn+F8 touchpadtoggle
0x8 f24 # Fn+F9 undock
0xB suspend # Fn+F12
0xF brightnessup # Fn+Home
0x10 brightnessdown # Fn+End
0x11 kbdillumtoggle # Fn+PgUp - ThinkLight
0x13 zoom # Fn+Space
0x14 volumeup
0x15 volumedown
0x16 mute
0x17 prog1 # ThinkPad/ThinkVantage button (high keycode: "vendor")
0x1A f20 # Microphone mute button; should be micmute, but see https://mail.gnome.org/archives/commits-list/2013-January/msg05822.html
