Comment 111 for bug 39315

Admittedly I am a Slackware user but the problem looks the same. I fixed it using the advice at:

http://rooster.stanford.edu/%7Eben/toshiba/keyboard.php

to paraphrase:

install accessx

then run the commands:

ax +bouncekeys
ax -timeout
ax bouncedelay 10

worked a treat for me.

Another method, based on the same reasoning is covered at:

http://www.janerob.com/rob/ts5100/index.shtml