Hi Daniel, Thanks for your response. I'll try to make some time to test your tips.
> You can also try booting a Fedora/Ubuntu/SuSE LiveCD, and see if with > their kernel the same happens (given that suspend works on their > LiveCD). If they manage to switch off the power to your USB-ports, that > can give us a hint. That I can try, I still keep the Ubuntu (shame on me! :P) which I used to install Gentoo. Best regards, Damian.