Comment # 2 on bug 933137 from Bernhard Wiedemann

Did you check while you generate some CPU load?  e.g. with
perl -e 'fork;fork;while(1){}'


and dont forget to check all 4 values with
grep MHz /proc/cpuinfo 

On many CPUs those can run at different frequencies.

frequency-scaling would also depend on the values in
cat /sys/devices/system/cpu/*/cpufreq/scaling_governor
(which is "ondemand" for my desktop with 13.2, where scaling works)