Bug#533185: Solution(?)

["Albert N. Honymous" <loic.jouanique@gmail.com>]

I happenend to have roughly the same problem (sometimes, keypresses being repeated without reason ... and, under X11, multiple X events for single keypresses)

The thing that solved it was a simple edit of /etc/X11/xorg.conf :
remove the Option "AllowEmptyInput" from ServerFlags section


.. hope this helps