Fn-PgUp key is supposed to turn on the little keyboard lamp on Lenovo. It used to work on my T61 and older models, but no longer on X220. Ideas anyone?
1. Figuring out the key code emitted by Fn+PgUp
2. Shell commands to switch on-off: can be integrated in ACPI Events, shortcut keys, etc.
Switch on the lamp:
Switch off the lamp:
For more information regarding ThinkLight on Linux: http://www.thinkwiki.org/wiki/ThinkLight