Description of problem: First of all one would expect, following a general schema, /etc/sysconfig/cpuspeed for that configuration file and not /etc/cpuspeed.conf as it is now. The second issue is that, AFAICS at least with i686 kernel, currently there are two "cpu/cpufreq" modules. Namely acpi-cpufreq.ko and p4-clockmod.ko. The first is used, if only possible, by /etc/init.d/cpuspeed if no other driver module is specified; which really leaves p4-clockmod. A default /etc/cpuspeed.conf says: # uncomment this and set to the name of your CPUFreq module #DRIVER="powernow-k7" Why not "p4-clockmod" at least? 'VMAJOR=1' and 'VMINOR=1' also do not seem to serve any useful purpose. Some documentation would also be nice. 'cpuspeed --help' printed on stderr, so sending that to 'less' is not straightforward, is not overly convenient. Version-Release number of selected component (if applicable): cpuspeed-1.2.1-1.40.fc6
The latest rawhide cpuspeed build (1.48.fc7) carries what I think is a far more useful config file. Adding further documentation will be tracked under bug 172655, closing this one out. Once we've had the rawhide build stabilized for a little while, I'll push it for fc6 as well.