So the basic issues here are that we need to get accurate and consistent
power measurements that we know are reliable.  I suggest running
powerstat from my PPA: https://launchpad.net/~colin-
king/+archive/powermanagement

* Make sure the machine is not running any unnecessary power sucking 
applications (like webpages with flash) etc
* Run powerstat - it will take ~8 minutes so that we can get a long battery 
capacity change to get a more accurate measurement.

..and then we can start looking seeing if this is really as bad as
powertop reports.

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https://bugs.launchpad.net/bugs/877560

Title:
  Audio codec draining power when not in use

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