Hi, I know I came late in this discussion. After upgrading to Edgy, my freq. scaling broke down. And my processor runs at full speed all the time (I have a Dell Inspiron 5160, P4 3.06 Mhz). I got this bug with both 386 and generic linux image 2.17 branch (neverthless to say that with Dapper and 2.15 everything was going fine).
I solved the problem re-installing powernowd (I'm not actually sure if it's necessary) and adding by hand the p4-clockmod module to the kernel by: sudo modprobe p4-clockmod and adding it to /etc/modules file. Hope this can help someone -- kernel can't scale cpu frequency https://launchpad.net/bugs/36014 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
