Acer C720: Is it worth to turn off unused devices?

Markus Pfeiffer markus.pfeiffer at morphism.de
Thu Dec 11 09:15:28 PST 2014


Hi,

On Thu, Dec 11, 2014 at 09:32:46PM +1000, Romick wrote:
> like put next lines in /etc/rc.local?
> 
> ======================================
> #!/bin/sh
> 
> # Turn off video camera
> /usr/sbin/usbconfig -d 1.3 power_off
> 
> # Turn off Atheros bluetooth
> /usr/sbin/usbconfig -d 1.4 power_off
> ======================================
> 
> I'm still looking for saving battery.
> 

In my laptop (Thinkpads mainly) switching off the bluetooth saves me about
1watt.

Markus
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