When running PowerTop, be sure to give it several minutes run-in before believing the power consumption figures. I've noticed it only seems to give me believable power consumption figures after about 10 minutes of use - its first estimates are quite wildly out but get better over time - in a kind of asymptotic manner.
Oh.. one more thing to add:
When running PowerTop, be sure to give it several minutes run-in before believing the power consumption figures. I've noticed it only seems to give me believable power consumption figures after about 10 minutes of use - its first estimates are quite wildly out but get better over time - in a kind of asymptotic manner.