How to make cpupower not reset after each restart?

Question

I use this command

sudo cpupower frequency-set -u 1.5G

To make the max CPU frequency to 1.5GHz but after restart it sets it back to default.

How can I set this at boot ?

score 1 · Answer 1 · edited Jul 06 '15 at 18:56

1

Any easy and reversible way

Open gedit and make a new blank document, then paste this into it

sudo cpupower frequency-set -u 1.5G

Now save it as cpu.sh, the .sh is very important and run

sudo cp ~/cpu.sh /etc/init.d/

Make it executable

sudo chmod +x /etc/init.d/cpu.sh

Then run

update-rc.d cpu.sh defaults

Now this script should run as root on boot

edited Jul 06 '15 at 18:56

orzechow

109
6

answered May 08 '15 at 17:50

Mark Kirby

18,289
19
78
113

Comments are not for extended discussion; this conversation has been [moved to chat](http://chat.stackexchange.com/rooms/23603/discussion-on-answer-by-mark-kirby-how-to-make-cpupower-not-reset-after-each-res). – Mitch May 09 '15 at 05:22

mikewhatever · Answer 2 · 2015-05-08T18:35:52.217

0

Check out /etc/default/cpupower, ...try adding max_freq="1.50Hz"

To detail the steps, run sudo nano /etc/default/cpupower, add the above line, then hit ctrl-o to save, and ctrl-x to exit.

/etc/default/ has global config files that are read at boot. Hope that will solve the problem.

edited May 08 '15 at 18:35

answered May 08 '15 at 17:52

mikewhatever

32,243
10
87
98

1

Doesn't work. Could it be that it asks me for password when setting it myself in the terminal ? – Ivaylo May 08 '15 at 18:33
@markkirby `sudo gedit`? Really? Do you want to ruin my good reputation? – mikewhatever May 08 '15 at 18:37
Don't understand, sorry. – Ivaylo May 08 '15 at 18:38
@Ivaylo No, it has nothing to do with sudo. If cpupower doesn't work, try `cpufreq-utils` instead. – mikewhatever May 08 '15 at 18:40
@mikewhatever I was making it as easy as possible for the OP as they expressed they did not understand the answer, whats wrong with gedit ? – Mark Kirby May 08 '15 at 18:41
1

`cpufreq-utils` doesn't work – Ivaylo May 08 '15 at 18:43
@markkirby Much is wrong with [sudo gedit](http://ubuntuforums.org/showthread.php?t=2269093), and I make a point of never ever advising it. – mikewhatever May 08 '15 at 18:49
@Ivaylo So, nothing works? I am sory to hear, don't know why. Perhaps double check eveything has been copied correctly. – mikewhatever May 08 '15 at 18:51
@mikewhatever Thanks for that I will avoid it from now on. – Mark Kirby May 08 '15 at 19:02
Very strange. The `indicator-cpufreq` is missing from the top bar and when i set the governor to "powersave" it still says that the current policy should be within 2.20 and 2.20. – Ivaylo May 08 '15 at 19:53
Ups, sorry wrong comment :) – Ivaylo May 08 '15 at 19:55
Hi, when i try to edit the file scaling_max_freq and scaling_min_freq it doesn't allow me to save it. Also if i set it myself from the terminal with `sudo cpupower frequency-set -u 1500000` it changes in the file, so logicly it will again reset itself after each boot. – Ivaylo May 09 '15 at 05:30
This is the answer. I wonder why it didn't have any upvote. – John Smith Optional May 19 '22 at 13:57

How to make cpupower not reset after each restart?

2 Answers2

Linked