Raphael Clifford wrote: > I am trying to reduce the power usage of my toshiba tecra a9. After > first running powertop and agreeng to all its suggestions, powertop -d > gives me on a mostly idle machine > > > > > The USB device active 100% is Bus 006 Device 002: ID 0483:2016 SGS > Thomson Microelectronics Fingerprint Reader > > Is there any way to turn this off?
Check the kernel driver/module and see if this is possible. You can also try manually enabling usb autosuspend for that device if you hadn't already tried that. > uname -a > Linux clifford-laptop 2.6.28-13-generic #45-Ubuntu SMP Tue Jun 30 > 19:49:51 UTC 2009 i686 GNU/Linux > > Raphael > P.S. I'd also love to get rid of > > 17.4% ( 37.5) <kernel IPI> : Rescheduling interrupts > 13.9% ( 29.9) <interrupt> : extra timer interrupt > > if anyone knows how to. Those are usually caused by things like keyboard interrupts and network traffic and not identifiable as such. Unfortunately you can't get rid of them in an easy way, other than eliminiating all those other interrupt sources. Auke _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
