Ubuntu
powertop package

  1. Bug #855348
  2. Comment #9

Comment 9 for bug 855348

Revision history for this message
In , Jaroslav (jaroslav-redhat-bugs) wrote :

It seems you didn't run the initial calibration. If you are running on NB, disconnect AC and run:
# powertop --calibrate
Then let the powertop to collect enough data (approx. 1 hour). After then it will show approx. wattage for each process / device. When you exit, it saves its state and the message should gone.

It is only warning and it should be ignored, if it annoy you and you can't/don't want to run the calibration just:
# touch /var/cache/powertop/saved_parameters.powertop

Maybe the wording of the message is a bit confusing, I will forward this to upstream.