July 23, 2007 · General · Email This Post

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The CPU Frequency Scaling Monitor provides a convenient way to monitor the CPU Frequency Scaling for each CPU.

Unfortunately, CPU frequency scaling can currently only be monitored on Linux machines that have support in the kernel. It can however, support the several generations of frequency scaling interfaces in the kernel.

When there is no CPU frequency scaling support in the system, the CPU Frequency Scaling Monitor only displays the current CPU frequency.

Right-click on your top or bottom bar, or wherever you want the applet to be you should see the following screen

Now you need to Click "add to panel"Once it opens you should see similar to the following screen

Now you need to find the "CPU Frequency Scaling Monitor" and click on add or drag this onto your bar.

Once it added in to your bar you should see similar to the following icon

Open up a terminal and enter the following command

sudo dpkg-reconfigure gnome-applets

Now you should see similar to the follwoing screen select ok and press enter

Next one is Install cpufreq-selector with SUID root select yes and press enter

Press enter again and you'll be back at the terminal window.

Left-click on your monitor and you should be able to choose the speed of your processor

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19 Comments to “Howto Change CPU Frequency Scaling in Ubuntu”

  1. Marco says:

    oh finally I was using emifreq-applet but it’s a little bit bugged
    thanks

    [Reply]

  2. romen says:

    how can i upgrade CPU Frequency

    [Reply]

  3. VCSkier says:

    Thanks so much. This works perfectly, and is remarkably simpler than how-to’s posted elsewhere.

    [Reply]

  4. Subaru says:

    Wow, that was alot easier than most other stuff. Cheers.

    [Reply]

  5. Ben says:

    didnt work for me :(

    [Reply]

  6. Jon says:

    Genius.

    [Reply]

  7. pio says:

    I’m very impressed by you, you are real geek…

    [Reply]

  8. henrique says:

    I love this tweak!

    [Reply]

  9. miguel says:

    Super but i have core 2 duo, and i cant monitor 2 cores at the same time, i have to add a nother one

    [Reply]

  10. Thanks for the info. Works great on my new system76 laptop. I just added 2 applets, one for each core.

    [Reply]

  11. Uchan says:

    Usually I replacing gnome power manager with kpowersave. It have CPU scaling feature too.

    [Reply]

  12. anonymous says:

    Not working in karmic :O

    [Reply]

  13. Clem says:

    Nope I couldnt get cpufreq to sit still, and reconfigure gnome applets doesnt work in karmic as far as I can tell.

    As Uchan says, kpowersave is a nice alternative.
    cpu does what I tell it now :) cheers

    [Reply]

  14. Ugh says:

    “Left-click on your monitor and you should be able to choose the speed of your processor”

    WHY DOESN’T THIS WORK ANYMORE IT USED TO

    I HATE YOU UBUNTU

    [Reply]

  15. kR105 says:

    It WORKS on Ubuntu 9.10, just we don’t need to use te “reconfigure” thing, only add the applet to the panel and you will be asked for the user password.. enter it and voilá you have stepping in Ubuntu ;)

    And to control 2 processors or more, just add two or more applets and configure each applet to each processor!

    Regards!

    [Reply]

  16. ntcleric says:

    Is there a way to change the frequency from command line? What I’m trying to do is set my temperature monitor (also Gnome – same icon, they look like twin controls) to pop an alert and slow down the CPU so it’ll cool itself off (like when I’m not watching the screen).

    [Reply]

  17. tosho says:

    I tried this on Ubuntu 10.10 and doesn’t work.
    when I write “sudo dpkg-reconfigure gnome-applets” in the terminal nothing happens.

    still “sensors” show high temperature of the CPU’s.
    any tips how to lower the temp? so can the fan stop working all the f**ing time …
    thanx :)

    [Reply]

  18. Dassie says:

    I was wondering if there was a way to check/see the CPU speed of my (old) Athlon64 4000+ This works. Nice :-)

    [Reply]

  19. tasos says:

    Any update for 12.04 version?

    [Reply]

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