Re: [Trisquel-users] Setting cpu frequency

[mikko . viinamaki]

If you bothered to read the manual page for cpufreq-set (i.e. man  
cpufreq-set) you notice it says:

"-f --freq
specific  frequency to be set. Requires userspace governor to be available  
and loaded."

and

"-g --governor
new cpufreq governor."

Thus, we first need to (as superuser)
cpufreq-set -g userspace
followed by your
cpufreq-set -f 1800000

You might also want to consider opening the lapper and blowing out any and  
all dust. This could be a rather formidable undertaking depending on the  
model.