On Lenovo T400 and Ubuntu 10.10, I am using CPU Frequency Scaling Monitor 2.30.0 on the panel to show and control CPU frequency.
My CPU frequency by default will change according to load. But I want to make CPU work at the lowest level and so I choose 800 MHz in CPU Frequency Scaling Monitor. After a few seconds, however, it automatically changes back to Powersave or Performance mode which has automatic adjustment to CPU frequency.
I was wondering how to actually make CPU work at the lowest level? Thanks!
PS: On Acer Aspire 5000 and ubuntu 8.10, I can use CPU Frequency Scaling Monitor to control CPU frequency as I wish.