I ran into the same problem with a no-name "Apple Like Bluetooth Mouse": After 
suspend, it reconnects just fine, but it doesn't move the pointer. The 
bluetooth applet shows it as connected, and so does "hcitool con", but X 
complains in its log that "device file is duplicate. Ignoring." and sure 
enough, "xinput list" still shows the rodent long after I disconnect it (using 
its hardware power switch, actually):
⎜   ↳ Apple Like Bluetooth Mouse                id=13   [slave  pointer  (2)]

As it turns out, if I do "xinput disable 13" while it is disconnected, and then 
connect it, the mouse connects, disconnects and reconnects normally.
This appears to work across suspends, as long as I follow the advice / 
workaround in the redhat bug and disconnect the mouse before suspend. If I 
don't, I end up with another zombie device that needs disabling, but after that 
(and reconnecting), the mouse is back to normal once more. (I'm at 3 zombies 
right now.)

Hope this helps some people until the real bug is fixed...

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https://bugs.launchpad.net/bugs/1075478

Title:
  Apple wireless bluetooth keyboard not working after suspend/resume

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