On Thu, 11 Dec 2014 06:39:10 PM Alexandra Yates wrote:

> An updated version of the PowerTOP User's Guide was released today!!
> 
> Visit https://01.org/powertop to get the latest copy.

It would also be useful to explain how to select the intel_pstate driver as 
whilst the Kubuntu 14.04 kernel has it compiled in it does not select it by 
default.

root(a)quad:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
acpi-cpufreq

root(a)quad:~# grep -i pstate /boot/config-3.13.0-43-generic 
CONFIG_X86_INTEL_PSTATE=y

CPU is IVB.

Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz (fam: 06, model: 3a, stepping: 09)

All the best,
Chris
-- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC