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 ?
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2 Answers
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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
orzechow
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Mark Kirby
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Comments are not for extended discussion; this conversation has been moved to chat. – Mitch May 09 '15 at 05:22
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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.
mikewhatever
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1Doesn'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
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@markkirby
sudo gedit? Really? Do you want to ruin my good reputation? – mikewhatever May 08 '15 at 18:37 -
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@Ivaylo No, it has nothing to do with sudo. If cpupower doesn't work, try
cpufreq-utilsinstead. – 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
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@markkirby Much is wrong with sudo gedit, and I make a point of never ever advising it. – mikewhatever May 08 '15 at 18:49
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@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
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Very strange. The
indicator-cpufreqis 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 -
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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 1500000it 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