Thinkpad power management

[Jason Barbier]

> Hello everyone. I'm trying to configure freebsd on my thinkpad t460 laptop
> to make it quieter and colder as possible. I increase c-states to max
> (freebsd print it's c3) and add powedxx service and some else options
> according to Vermaden's article. But even after all this manipulations
> linux with tlp still colder and much more quieter on same task and similar
> workflow.
> What do I do wrong? Is it possible to make freebsd performance on laptol
> similar to linux?
> 
> Thanks

If you are using 12 or newer on a Core I cpu chances are you are using the pstate driver. with the pstate driver the processor manages the cpu scaling and limits, which is how linux does it.
PowerD and PowerD++ don't understand pstates and are not useful here.
If you want to manually control it you need to follow the instructions under CPU at https://wiki.freebsd.org/TuningPowerConsumption

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Jason Barbier | E: jason at corrupted.io 
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