That is exactly what I am trying to do now!
I am running an HP-Compaq nx9005 (Mobile Athlon 2400+), I had been using powersaved but a few days ago I decided to reinstall Slack. A few problems with that:
1) Powersave doesn't compile. It gives an error related to some cpufreq-thing, although I have everything needed in the kernel..
2) acpid doesn't start. It says:
acpid: can't open /proc/acpi/event: Device or resource busy
3) Anyways, I am planning to use KLaptop. It shows available speed levels (there are six), but won't let me change. The notebook is always running at 1800 MHz when I don't need that power.
Opening a new topic seemed unnecessary.