Re:

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

On Mon, Sep 26, 2011 at 09:44:27PM +0200, Riccardo Mottola wrote:
> true, but it is a laptop with a new battery... It worked very reliably 
> until... the last kernel update. Of course, coincidences happen... 
> however....

Switch to older kernel. If it works, there should be enough proof
that it is a software defect in recent -current.

- Jukka.