[ltp] ACPI or APM on X24?

[Steve Nicholson]

I'm starting to have an attempt on getting suspend to work on my X24 
correctly. First is to decide on ACPI or APM (my kernal is "Linux 
version 2.6.8.1-10mdk"). Looking on 
http://thinkwiki.org/How_to_make_use_of_Power_Management_features

It states:
"On older models you are surely better off with APM, if they feature 
ACPI at all. I.e. the first models from the A, T and X series seem to 
have an incomplete ACPI implementation."

How do I tell if the X24 has an incomplete ACPI implementation and or 
the "Problem with high power drain in ACPI sleep"?

What are others with X22-X24 using?

thanks and have a great day.
Steve.