Comment 4 for bug 137252

"cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors" reveals this:
powersave ondemand userspace conservative performance

When I switch through the governors CPU frequencies are actually scaled. However either max or min are used. I checked scaling_available_frequencies and there are the same frequencies defined as with the 386 kernel, where frequency scaling works fine, they are just never used.

ondemand and performance governor lead to the max frequency used all time and powersave does lead to the min frequency to be used all time. I think userspace resulted in min frequency as well.

Still no idea why all this happens.