Originally Posted by ku4eto
Thats a terrible way to do it, which i do not recommend. Disabling the other states is always bringing problems. Wattman actually is way better than such annoying tools.
That annoying tool gives you direct access to the same power tables that wattman manipulates. It works perfectly fine when used properly and allows for much finer tweaking and control. Disabling P states isn't something I would do either but the tool itself isn't to blame for improper use