Re: usb still sucks battery in -rc7-mm1
From: Pavel Machek
Date: Mon Sep 25 2006 - 10:18:25 EST
On Sun 24-09-06 16:49:59, Alexander Gran wrote:
> Perhaps your cpu cannot go into deep c states? At least my IBm T40p has that
> problem, when USB is enabled.
Yes, and latest -mm's were expected to fix that...
> 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 http://www.grans.eu/misc/pgpkey.asc | Key-ID: 0x6D7DD291
> More info at http://www.grans.eu/Alexander_Gran.html
Thanks for all the (sleeping) penguins.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/