After playing with GRUB profiling and installing preload, default scaling governor suddenly becomes 'performance' not 'ondemand'. I tried to enable /etc/init.d/ondemand service, but nothing changes - after reboot or resume, governor is always 'performance'. Do anybody knows what happened and how to revert old behaviour.
I'm using HP 6710s laptop.
You can Manually set the governor by running the cpufreq-set command (as root).
Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the commands below.
sudo cpufreq-set -c 0 -g ondemand
To install cpufreq-set:
sudo aptitude install cpufrequtils
cpufrequtils includes a daemon which allows users to set the desired scaling, governor and min/max clock speeds for all processor
cores at boot-time. Before starting the daemon, edit
/etc/default/cpufrequtilsas root, selecting the desired governor and
setting the min/max speed for your CPU(s), for example:
/etc/conf.d/cpufreq
#configuration for cpufreq control
# valid governors:
# ondemand, performance, powersave,
# conservative, userspace
governor="ondemand"
# valid suffixes: Hz, kHz (default), MHz, GHz
min_freq="1GHz"
max_freq="2GHz"
Source: archlinux.org
