I have the same problem on Acer Aspire 5020. After suspend sometimes
keyboard is not responsible at all.

Putting following file in /etc/pm/sleep.d/90-keyboard and making
runnable fixes all the problems :)


#!/bin/bash

. /usr/lib/pm-utils/functions

case "$1" in
    hibernate|suspend)
    # Do stuff on hibernate or suspend
;;
    thaw|resume)
    # Do stuff on resume
    # reset keyboard controller
        echo -n "i8042" > /sys/bus/platform/drivers/i8042/unbind
        echo -n "i8042" > /sys/bus/platform/drivers/i8042/bind
;;
    *)
;;
esac

exit

-- 
After booting the pc from the suspend state, keyboard is not working
https://bugs.launchpad.net/bugs/448148
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