gnome-shell-extension-cpu-freq

View the actual frequency and change CPU frequency governor from gnome shell.

There is a bit of work to make it work though.

cpufreq

You need CPU Frequency scaling set up to use it.
Archlinux: https://wiki.archlinux.org/index.php/CPU_Frequency_Scaling

cpupower is the tool we are using, support for Ubuntu is coming in Sausy hopefully.

PLEASE PLEASE PLEASE READ THE ARCH LINUX WIKI PAGE CAREFULLY

I included the policy I use on Arch Linux (systemd init system) put it in /usr/share/polkit-1/actions/