I've find a solution.

I think is a Linux kernel problem with mouse's multiplexer.

I've added "i8042.nomux" to the booting kernel and the problem goes
away.

** Also affects: linux (upstream)
   Importance: Undecided
       Status: Unconfirmed

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When my laptop access acpi subsystem the mouse, sound, ecc.. stop working
https://launchpad.net/bugs/50188

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