From mboxrd@z Thu Jan  1 00:00:00 1970
From: garkein@mailueberfall.de
Subject: Processor state C6 only used in battery mode, workaround possible?
Date: Sun, 29 Jun 2008 12:12:33 +0200
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Hello,
with recent powertop, I could confirm that my T61 uses the C6 processor
state only in battery mode:

(Kernel 2.6.25)

AC:
Your CPU supports the following C-states : C1 C2 C3 C4 C5 C6 
Your BIOS reports the following C-states : C1 C2 C3

Battery:
Your CPU supports the following C-states : C1 C2 C3 C4 C5 C6 
Your BIOS reports the following C-states : C1 C2 C6

Since the notebook runs quite a bit cooler, and thus less noisy (fan) in
battery mode, I would like to have it use that C6 state also in AC mode.
Is it possible, maybe with some slight tweaks, to convice the kernel (or
BIOS?) to also use that C6 state when in AC mode?

Thanks,
Daniel