Activating acpi on a thinkpad R51

[[LoN]Kamikaze]

vittorio wrote:
> I wonder what steps should I take using the battery to make my thinkpad R51 go 
> to stand-by or suspend (by the way, what's the difference between suspend & 
> stand-by?) when I close the lid and what should I do  to resume the suspended  
> session? 

If you run the radeon driver, your chances are bad, because the system
will crash upon resume, unless you are willing to deactivate DRI.