Buetooth is broken after sleep with 3.11 kernel used in Kubuntu 13.10. The workaround:
Create a file /etc/pm/sleep.d/10_bluetooth with the following content
#!/bin/bash
#Code from http://ubuntuforums.org/showthread.php?t=1387211
. /usr/lib/pm-utils/functions
case "$1" in
hibernate|suspend)
rfkill block bluetooth
;;
thaw|resume)
rfkill unblock bluetooth
;;
*)
;;
esac
exit
Set permissions
chmod 755 10_bluetooth