[ltp] Re: Getting ipw3945 kill switch to bring eth1 down?

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Mon, 19 Nov 2007 23:43:42 -0200


On Mon, 19 Nov 2007, Stefan Monnier wrote:
> > That said, I usually down the interfaces and remove the device driver
> > modules for stuff I am not using when on battery, because the kernel powers
> > down or deactivates a lot of stuff when we do that, and that saves a
> > noticeable ammount of power.
> 
> What it's worth: my T60's ipw3945 chip seems to consume 0.7W *more* when
> the module is unloaded than when the interface is up and running in
> power_save mode 7.

Interesting data point.  Maybe the card is being left on, running a tight
loop (bad).

I will re-check that with the T43 and the ipw2915 card.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh