I need to enable scroll lock so I can toggle lights on my keyboard. This works on Arch.Funny thing it doesn't work on Ubuntu.
http://linuxtechie.wordpress.com/2008/04/07/getting-scroll-lock-to-work-in-ubuntu/
$ xmodmap -e ‘add mod3 = Scroll_Lock’
xmodmap: unknown command on line commandline:1
xmodmap: unable to open file 'mod3' for reading
xmodmap: unable to open file '=' for reading
xmodmap: unable to open file 'Scroll_Lock’' for reading
xmodmap: 4 errors encountered, aborting.