GNU/Linux Desktop Survival Guide
by Graham Williams
CPU frequency scaling works following the advice on
http://tkrat.org/d810/ and the README.Debian in the
package. Ensure the relevant modules are loaded
at boot by adding the following to /etc/modules
The powernowd daemon measures the CPU load and based on this will step the frequency of the CPU to slow it down if the CPU is not being used, and thus saves power. By default, once the package is installed, the daemon will switch to full power once the CPU usage goes above 80%.