Go to TogaWare.com Home Page.
GNU/Linux Desktop Survival Guide
by Graham Williams

Power Management

CPU frequency scaling works following the advice on http://tkrat.org/d810/ and the README.Debian in the powernowd package. Ensure the relevant modules are loaded at boot by adding the following to /etc/modules


Then install powernowd (the standard Debian kernels have the appropriate configuration).

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%.

Copyright © 1995-2006 [email protected]
Contribue and access the PDF Version