Re: usb still sucks battery in -rc7-mm1

From: Alexander Gran
Date: Sun Sep 24 2006 - 10:53:30 EST

Perhaps your cpu cannot go into deep c states? At least my IBm T40p has that
problem, when USB is enabled.


Am Sonntag, 24. September 2006 11:08 schrieb Pavel Machek:
> Hi!
> I made some quick experiments, and usb still eats 4W of battery
> power. (With whole machine eating 9W, that's kind of a big deal)...
> This particular machine has usb bluetooth, but it can be disabled by
> firmware, and appears unplugged. (I did that). It also has fingerprint
> scanner, that can't be disabled, but that does not have driver (only
> driven by useland, and was unused in this experiment).
> Any ideas?
> Pavel

Encrypted Mails welcome.
PGP-Key at | Key-ID: 0x6D7DD291
More info at

Attachment: pgp00000.pgp
Description: PGP signature