Comment 8 for bug 1180120

This issue has affected me for years (I'm the one who posted this question http://askubuntu.com/questions/261559/keyboard-repeat-delay-is-reset-when-plugging-in-usb-keyboard-in-ubuntu-12-10-xfc/666488#666488 ). Happens every day when I bring my laptop in to work.

Gonna try Wirawan's workaround and see if I get some results.