A bug in Powertweak 0.1.16 can cause it to incorrectly set some /proc variables to 0 when downgrading from a 2.4 kernel to a 2.2 kernel. The solution is simple and is attached as patch. This is btw exactly the difference between version 0.1.16 and 0.1.17.
Created attachment 3743 [details] patch with fix
I've put 0.1.17 in Rawhide.