I'm currently using this:
cpupower frequency-set --governor powersave
but it resets after each reboot.
-
Related: askubuntu.com/questions/523640/…– Ciro Santilli OurBigBook.comNov 20, 2020 at 22:23
Add a comment
|
3 Answers
For 16.04 there's one more step to add to Jayen's answer. The complete set of steps are
sudo apt-get install cpufrequtils
echo 'GOVERNOR="powersave"' | sudo tee /etc/default/cpufrequtils
sudo update-rc.d ondemand disable
The last step disables the "ondemand" daemon, which would otherwise overwrite the changes created by cpufrequtils.
See also How I can disable CPU frequency scaling and set the system to performance?
You might also consider adding, for example, MAX_SPEED="2GHz" to /etc/default/cpufrequtils if you have an overheating, say, 2.2GHz processor, to limit the maximum possible speed.
-
-
2Can you still switch to the ondemand governor temporarily, using
cpufreq-set, after disabling it withupdate-rc.d?– Xen2050Dec 22, 2017 at 23:15 -
Did you mean "override" or "overwrite" the changes created by cpufrequtils? I believe it should be former.– Jus12Dec 10, 2019 at 13:02
-
1Note, for ubuntu 18.04+ use
sudo systemctl disable ondemandto disable ondemand Dec 2, 2021 at 18:32 -
This is not recommended because the file may already exist, so you'd a second line of GOVERNOR=– FreedoFeb 4, 2022 at 7:08
To set the governor permanently to powersave, firstly install cpufrequtils:
sudo apt-get install cpufrequtils
And then edit the /etc/init.d/cpufrequtils file and change GOVERNOR to "powersave" (GOVERNOR="powersave"). You can do this automatically by using the following command:
sudo sed -i 's/^GOVERNOR=.*/GOVERNOR="powersave"/' /etc/init.d/cpufrequtils
From here: Prevent Your Laptop From Overheating With Thermald And Intel P-State
answered Apr 9, 2014 at 18:22
-
8Editing the /etc/init.d/cpufrequtils is the wrong approach because this file contains the following code:
if [ -f /etc/default/cpufrequtils ] ; then . /etc/default/cpufrequtilsTherefore the default governor should be set as follow.echo 'GOVERNOR="powersave"' | sudo tee /etc/default/cpufrequtils– caracalOct 1, 2018 at 18:59
Based on Alin's answer, but will persist when cpufrequtils is upgraded:
To set the governor permanently to powersave, firstly install cpufrequtils:
sudo apt-get install cpufrequtils
And then create/edit the /etc/default/cpufrequtils file (which is read from /etc/init.d/cpufrequtils) and set GOVERNOR="powersave". You can do this automatically by using the following command:
echo 'GOVERNOR="powersave"' | sudo tee /etc/default/cpufrequtils
And if you are on Ubuntu 16.04 or later, you need to disable the built-in service that sets the governor to ondemand:
sudo update-rc.d ondemand disable
-
There I am posting last step for Ubuntu 18.04 or later: And if you are on Ubuntu 18.04 or later, you need to disable the built-in service that sets governor to
ondemand:sudo systemctl disable ondemand– lukeAug 13, 2022 at 13:23