Comment 5 for bug 1723777

Reproes with the v4.14 kernel.

Power usage on idle is
4.14:~8W
4.13:~10W
4.10:~7W

There appears to have been a significant regression in power use from 4.10 to 4.13 that has been partially addressed in 4.14.

I got curious, and I get the same 100% busy report if I boot with the legacy 4.10.37 kernel now (whereas I did not before), so this might be an issue with powertop as upgraded with 17.10 and the bt driver might be a red herring. Is there a more reliable way to measure power usage?