> Even if you were already successfully running ACPI, please retest with the new 
> version and confirm whether or not it works.

My Sony VAIO(PCG-U1) has a problem with these changes.

The keyboard on pckbc0 at acpi0 stops to work after
about 30 or 40 seconds from kernel booting.

Are there any clues to solve this problem?
I will send-pr in detail later.
-- 
iKAWAMOTO Yosihisa!
                   kawamoto@tenjin.org