Questions tagged [cpupower]

Questions relating to the Linux cpupower command. Used for power saving for processors and other related power tools.

see cpupower man page

15 questions
6
votes
3 answers

How to install cpupower on Ubuntu 20.04 with kernel 5.17+

I'm testing the new amd-pstate driver on my laptop, I've installed the latest kernel 5.18 via ppa:tuxinvader/lts-mainline , changed some boot options and everything works flawlessly. Unfortunately when I run the command cpupower , I'm getting:…
Razor
  • 175
3
votes
2 answers

can't control cpu frequencies in 19.10 on 7390 xps 13 2-in-1

I have been unable to control the cpu frequencies using either tlp, or cpupower, or other tools. Kernel version is 5.3.0-19-generic. I tried using intel_pstate active or turning off intel pstate with 'intel_pstate=disabled' as a kernel boot…
Eric M.
  • 71
  • 5
3
votes
2 answers

Ubuntu 18.04 Kernel (5.0.13) cpupower does not run

I am using the Lenovo Thinkpad e490. I installed dual-boot with Windows, but I had a couple of issues so I updated my Kernel to 5.0.13 (I read in a forum that this version fixes some problems, but newer versions are probably fine too). Now I did…
Paul_W
  • 31
2
votes
0 answers

how to correctly set the upper limit for my cpus clock speed

I want to limit my CPU clock speed, but it ignores all the settings I apply. I tried using cpufreq and cpupower and the following commands: sudo sh -c 'echo 1500000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' sudo sh -c 'echo 1500000 >…
newlinuxuser
  • 21
2
votes
0 answers

How do I make cpupower frequency-set not reset at boot?

when I set cpu frequency range with this command: sudo cpupower frequency-set -d 500MHz -u 2700MHz the frequency range is succesfully set to these values, but when I reboot and do: sudo cpupower frequency-info i notice that the frequency range is…
peppe
  • 21
1
vote
2 answers

Setting CPU frequencies with cpupower has no effect

I tried it on desktop Ubuntu 22.04.3, 23.10, regular and lowlatency versions. I have to increase the minimum frequency of a core, which runs an image capture process requiring high CPU clock. Here is an example: paul@box4x4:~$ sudo cpupower -c 5…
Paul Jurczak
  • 1,267
1
vote
1 answer

How to install cpupower on Ubuntu 22.04

sudo apt-get install cpupower Installation error: E: Unable to locate package cpupower I have no idea why this error might be caused
Hobble
  • 11
1
vote
0 answers

CPU frequencies manually set using cpufreq doesn't seem to be effective anymore after sleep

I have set the frequencies of the 4 cores of my Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz CPU to lower values ( 800Mhz ) for energy saving when using the computer on the field using this command: for i in {0..3}; do sudo cpufreq-set -c ${i} -g…
s.k
  • 1,518
1
vote
1 answer

Monitoring CPU freq in real time

I have 16.04 LTS installed on a Ryzen 1700X computer. I am able to see the frequency of each of the individual 16 threads by running the command sudo cpupower monitor . Along with the frequencies, it displays information regarding power states, and…
Nick Bailuc
  • 3,335
0
votes
0 answers

CPU frequency stays in 200Mhz with 100% usage

I'm currently having an issue with my notebook where sometimes CPU usage reaches 100% and CPU frequency keep in the low end (200Mhz) for a long period of time. It doesn't happen all the time, but it happens frequently enough and it stays like that…
Vinicius
  • 1
0
votes
0 answers

CPU Frequency seems very high, even in powersave mode - Lubuntu 22.04

I have installed Lubuntu 22.04. on an old HP 15-db0021ng notebook. Everything runs OK, but the CPU frequency appears very high, even when idle. It never drops below Freq: 56% and frequently scales to 116% while browsing Instagram or watching YouTube…
JMW
  • 1
0
votes
0 answers

How to set minimum CPU frequency?

I am trying to set the minimum frequency of my CPU in ubuntu. Basically, the minimum my CPU runs in Windows is 2%, and in ubuntu it is 19%. Is there some way to change it from 19% to 2%? I tried using cpupower and the "CPU power manager" app, but I…
EllistonV
  • 3
0
votes
0 answers

cpu max frequency

I am trying to change my cpu max frequency. I have tried with tlp, cpupower, and the solution in this same forum (the one that goes: for x in /sys/devices/system/cpu/*/cpufreq/; do echo 1700000 | sudo tee $x/scaling_max_freq; done) None of these…
EllistonV
  • 3
0
votes
1 answer

cpupower frequency-set asks for permission despite being added to /etc/sudoers

Recently cpupower stopped working when calling it without sudo. I have the following line in /etc/sudoers/ . dimfred dimfred-schlap= NOPASSWD: /usr/bin/cpupower frequency-set * Is this correct? AFAIK * should normally replace the following…
Dimfred
  • 131
0
votes
2 answers

CPUFreq: Only 'ondemand' and 'powersave' governors work when laptop's running on battery

So I'd like to be able to use my laptop however I want while it's discharging. Problem is, my Acer Aspire 5 has two AMD GPUs: AMD R7 M440, which is my integrated gpu and RX540, the dedicated gpu. When my laptop is plugged in, CPU frequency goes all…
Rodolfo Ferreira
  • 1