Index
Subject
: LUG: Frequency scaling controls in Ubuntu
From
: Richard Carter <rwcarter@ncsu.[redacted]>
Date
: Wed, 18 Mar 2009 12:21:02 -0400
Hey all,
This is something that I forgot to mention last night. If you've ever used Vista on a laptop you will have noticed the power settings; Balanced, Power Saver, and High Performance. On laptops with a processor that supports frequency scaling (the ability to reduce its frequency to save power) then these settings will alter the frequency; for example, with my Core 2 Duo 2.0ghz, Power Saver mode keeps the processor running at 1.0ghz, High Performance keeps it at 2, and Balanced stays at 1 but increases up to 2 depending on the load.
The same thing can be done in Ubuntu, and easily! Just follow the instructions here and you'll be changing frequency in no time:
http://www.ubuntugeek.com/howto-change-cpu-frequency-scaling-in-ubuntu.html
Essentially the Gnome CPU monitor applet can also be used as a frequency selector, and just like in vista it has "Conservative, Ondemand, Performance, Powersave" modes, as well as specific frequency options (in mine, 1 Ghz, 1.33, 1.67, 2).
As a previous Vista user, I was very glad to see this option. Hope you find it useful as well!
-Ricket
Replies
: