powertop doesnt show watts

[cylent]

i am not sure where to put this...
my problem seemed like maybe i forgot to issue an option during start of the powertop utility.
the problem is powertop doesnt show "watts" usage. it shows percentage.

I've tried different laptops all with the same results.. powertop simply doesnt show me watts usage.

pls help!

[omeomi]

Did you unplug the power cable when you tried?

[cylent]

Of course.

I tried powertip 1.97 and 2.1. Both same thing.