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Questions tagged [cpufreq]

CPU Frequency, or CPU Frequency Scaling. This is implemented in the Linux kernel, and in versions since 3.4 use an ondemand governor by default, which saves power by using as much as is needed.

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Change CPU frequency in Linux

I have another PC and I want to install Linux on it but I don't know if Linux can change the CPU frequency so I'm asking for guidance.Can you change the CPU frequency in Linux Ubuntu? The CPU is AMD ...
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How does Ubuntu 22.04+ set cpu governor?

I have a heavily customized over the years Ubuntu installation and I see that my CPU governor on 22.04 is performance. However it seems like on modern AMD machines (other systems I have) the default ...
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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 ...
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Howto install auto-cpufreq? [duplicate]

I am trying to install auto-cpufreq using this command git clone https://github.com/AdnanHodzic/auto-cpufreq.git cd auto-cpufreq && sudo ./auto-cpufreq-installer After installation of sudo ...
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How to set cpu governor to performance in Ubuntu 22 server

I have already read similar posts about this but none of them is related to my situation. When using the following command : cpupower frequency-info I get the following result : analyzing CPU 0: no ...
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CPU Throttling on Ubuntu 22.04 (ok on 20.04)

I've made a fresh install of Ubuntu 22.04 on Lenovo Yoga X390 (previously using Ubuntu 20.04, which worked satisfactorily for a long time). The hardware configuration didn't change; the CPU is i5-...
Piotr Czekalski's user avatar
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Is Studio Controls available in Ubuntu Studio 23.10 and beyond?

I have been testing Ubuntu Studio 23.10. During the testing, I could not find Studio Controls, which has been available for some time in Ubuntu Studio. Is it installed? If not, is the CPU Governor ...
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Why Gnome CPUFreq settings seem to have no effect?

I'm running Ubuntu 22.04.3 LTS x86_64 and trying to set constant CPU frequency for all CPUs. Here is the status: Why some of the CPUs disregard the Min/Max frequencies set in CPUFreq app?
Paul Jurczak's user avatar
1 vote
1 answer
79 views

Intel 13980HX reports 5.4 GHZ max instead of 5.6 GHZ

I have a laptop with an Intel 13980HX which is supposed to have a max boost frequency of 5.6 GHZ on the p-cores. However Linux is reporting max of 5.4 GHZ at the moment, any clues why? I'm running the ...
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191 views

Cpu stuck at 800MHz when under load

I have a system running Ubuntu 22.04.3 LTS (GNU/Linux 5.15.0-82-generic x86_64). I started noticing that it sits around 3.4 GHz like it should but when it goes under load, all cores drop to 800MHz. I ...
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Ubuntu 22.04 - CPU constantly running too hot at 90°C

the output of sensors is constantly looking something like this with regular spikes over 90°C or 95°C for multiple seconds. This does not seem healthy for the life of the CPU. I am using a ThinkBook ...
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How to prevent thinkbook 16 laptop from underclocking and staying at low temperature?

Recently I have purchased Lenovo Thinkbook 16 G5+ IRH with Intel i7-13700H processor. While I was stress testing CPU on AC, its frequency reached 4.0GHz for a short time and hit 90C, and then it ...
Eddie Young's user avatar
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Time spent in cpu frequency on core i5

On my old server with AMD Athlon X2 5050e processor, I have /sys/devices/system/cpu/cpu*/cpufreq/stats/time_in_state that tells me how much time the processor spent in each frequency state. Now I have ...
Maarten Deen's user avatar
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Reducing frequencies to limit the fan noise [Ryzen APU / Ubuntu 23.04]

Recently I bought a Topton Ryzen 9 5900hx minipc which is silent under normal usage, but become very loud under load and needed some way to make it quieter. I tried lm-sensors and fancontrol, but the ...
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Only three options for CPU frequencies in Ubuntu 22.04 (AMD Ryzen 3 5300u)

I tried installing indicator-cpufreq to set a custom frequency, but I am only getting three options(image bellow). options in indicator-cpufreq Also, I tried running this in terminal: cat /sys/devices/...
Marko Sutalo's user avatar
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How to fix cpu being throttled to 800 MHz on Dell Precision laptop?

How would you get your CPU to reach the maximum frequency when it's being throttled to 800 MHz? After upgrading my Ubuntu distro a few months ago, on a Dell Precision 5520 laptop, I noticed it became ...
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How to change kernel boot parameters?

I need to turn CPUIDLE Off on Ubunto 20.04 The instructions I have are: "Disable CPUIDLE via the kernel command-line in grub:" linux /boot/vmlinuz-4-19.0-16-rt-amd64 cpuidle.off=1 How do I ...
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Unable to limit CPU speed on Ubuntu 22.04 with cpufrequtils

Based on this: How can I easily control CPU speed on Ubuntu? I try to manually force some of my CPU cores on Ubuntu 22.04.1 5.15.0-56-generic x86_64 GNU/Linux to be limited to 800 MHz using cpufreq (...
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Correct way to tune CPU governor's parameters?

Looking for explanation on how to change the parameters of the CPU governor on 22.04 and that they stick after a reboot. I am talking about the governor's parameters like "sampling_rate", &...
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how do i set every core to a different frequency

I tried to use sudo cpufreq-set -c -f to change a single core's frequency, while all the other cores' frequency changes simultaneously, is this because my CPU cannot support achieving this? My CPU is ...
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1k views

Issues setting scaling governor in 22.04.1 LTS

I made a new 22.04.1 LTS install today. I wanted to test an app I made that modifies your CPU's clock frequency. The first step for testing was to change the scaling governor to userspace so I can set ...
IntegralPilot's user avatar
2 votes
1 answer
6k views

intel_pstate CPU model not supported

I've recently updated to Ubuntu 22.04 LTS and saw there was power options. However, performance mode is not available. I can't get the same performance and benchmark scores I get in Windows dual boot. ...
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Override CPU frequency limitation on a MacBook Pro without battery

I have a MacBook Pro late 2013 that has frequency limitation at 800Mhz due to lack of battery. I'm trying to override this limitation running Ubuntu 22.04.1 LTS $ uname -r 5.15.0-46-generic $ lscpu ...
Andrea's user avatar
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1 answer
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Why is Ubuntu 22.04 shutting down unexpectedly?

I recently upgraded to Ubuntu 22.04 and my Dell laptop started shutting down unexpectedly. It seems like my CPUs are spiking to 100%, then shutting down. In many cases I can’t do the most simple task, ...
Rafael Zasas's user avatar
1 vote
3 answers
3k views

Maximum CPU frequency reported wrong by lscpu, CPU not boosting to actual maximum frequency

I'm using Ubuntu 20.04, and my CPU model is the Intel i7-10750H: > lscpu Model name: Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz Stepping: 2 Frequency ...
user258532's user avatar
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8 votes
2 answers
5k views

Determining the clock speed

I mean to determine the clock speed. I am posting below the output of the various commands listed here. For the max freq, I see 4 different sources, with 2 different values: CPU max MHz: 3300,0000 ...
sancho.s ReinstateMonicaCellio's user avatar
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1 answer
1k views

Battery-less MacBook Pro CPU is very slow

I have an Early 2011 era 13" MacBook Pro with an Intel Core i7-2620M CPU and have made the switch to Ubuntu because my laptop's MacOS support was dropped a few years ago. The battery has recently ...
Hassan's user avatar
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Permanently setting intel pstate driver to "passive"

My i5-11600K CPU is using the intel_pstate frequency scaling. By default, the driver is in "active" mode and will throttle up ALL 6 physical cores, even if there is only work for one core. ...
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Set CPU frequency permanently [duplicate]

Just got a laptop with an Intel Celeron N4500 (Dual Core @ Max. 2,800) which runs out of the box on 1,100. This is not even enough to run Netflix on full screen that's I'd like to increase the ...
JoeHardi's user avatar
1 vote
1 answer
689 views

ALL CPU's stuck at 800Mhz ubuntu 20.04.3

Cpu's all stuck at 800Mhz I type in watch -n1 "cat /proc/cpuinfo | grep MHz" (to see cpu's) No matter what I do, I launch a large program and render an animation in Blender or use Octave to ...
Rick T's user avatar
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451 views

cpufreq: cpu frequency going down to minimum just when I need extra power

I've spent almost 3 days around this problem, to no avail. I felt the laptop was running slow on certain tasks, slower than usual so I downloaded cpufreq extension to try and monitor and maybe ...
Maor Barazani's user avatar
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1 answer
350 views

Baud Rate instable on RPI4

I have a strange problem. I'm running a TCP to Serial server I wrote in Python3. It uses the UART of the RPI4 at 500000 baud. Initially I wrote it for a NanoPi and runs fine, but when switching to the ...
Sioux's user avatar
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1 answer
1k views

Override BIOS limitation on CPU frequency

Similar to previous questions (example 1, example 2), the BIOS is limiting my CPU frequency because of a bad connection with the center pin of the adapter on my Dell Precision M5520 (which leads to ...
Garrett's user avatar
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1 answer
1k views

cpufreq scaling governors "ondemand" and "conservative" won't ignore nice load on AMD Ryzen CPUs

My kernel 5.11.0-22-generic automatically loads the cpufreq scaling driver acpi-cpufreq and the scaling governor schedutil for my Ryzen 9 5900X. I enabled the setting ignore_nice_load after changing ...
Stéphane Tréboux's user avatar
1 vote
2 answers
389 views

Getting Stuck on Low Clock Frequencies

I have been using the Ubuntu 20.04 LTS for the past three months after dualbooting it with Windows 10, and recently it has started showing some problems. I usually use my laptop(Lenovo Ideapad C340) ...
Tanmay Thakur's user avatar
1 vote
1 answer
840 views

CPU frquency scaling broken on upgrade from Ubuntu 20.10->21.04 (Intel CPU)

This is basically a followup to CPU frquency scaling broken on upgrade from Ubuntu 20.04->20.10 (Intel CPU) However, I'm not allowed to comment, and it was suggested to write a new question instead....
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1 answer
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Check max cpu clock speed in linux

I have seen this question multiple times but no answer to the point. I am on Ubuntu 20.04, CPU is R9 5950x. All I want is a stress test where it shows the max clock speed (in MHz) and what a single ...
user43280's user avatar
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2 votes
4 answers
1k views

Intel Core i7-8550U cpu frequency drops on high loads on Ubuntu 20.04

I installed Ubuntu 20.04 and have the following cpu: grep -E '^model name|^cpu MHz' /proc/cpuinfo model name : Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz cpu MHz : 3000.025 model name : Intel(R) ...
igntec's user avatar
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1 vote
1 answer
3k views

What does each governor mean on my device?

What does each governor mean on my device?
gdAdithya's user avatar
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8 votes
5 answers
33k views

How to set as default Performance mode on Ubuntu 20.04 instead of Powersave?

I've been trying unsuccessfully to have the CPU governor default to Performance instead of Powersave at startup. Is there a tried-and-true method that currently works for Ubuntu 20.04? I tried the ...
facialrecognition's user avatar
0 votes
1 answer
214 views

What is the lowest frquency possible?

What is the minimum possible frequency of a CPU (in my case I have the Intel® Core™ i7-8750H CPU @ 2.20GHz × 12)
EllistonV's user avatar
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627 views

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 ...
EllistonV's user avatar
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789 views

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 ...
EllistonV's user avatar
1 vote
1 answer
2k views

CPU frquency scaling broken on upgrade from Ubuntu 20.04->20.10 (Intel CPU)

On upgrading from 20.04 - 20.10 I have noticed a massive degrading of performance, my laptop has basically become unusable. After a bit of digging it turned out that all CPUs were constantly scaled to ...
Garanthor's user avatar
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1 answer
2k views

Ubuntu 20.10. Cannot change the CPU scaling governor. It always goes back to "ondemand" after reboot

I'm running Xubuntu 20.10. I'm trying to change the CPU scaling governor to "conservative". But it always goes back to "ondemand" after reboot. I have a Ryzen 7 4800H. So, my CPU ...
Marces's user avatar
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Switching to AMD ryzen 5900x or 5950x. Any stability problem with 20.04 LTS?

I only run codes (C, Python) on my desktop which I am thinking of upgrading, either to AMD ryzen 5900x or to 5950x. I will be using ubuntu 20.04 LTS (only, no windows). Does anyone have any experience ...
user43280's user avatar
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1 answer
2k views

Clock CPU at frequencies other than 'available frequencies' on Xubuntu with Ryzen processor

CPU: $ cat /proc/cpuinfo processor : 11 vendor_id : AuthenticAMD cpu family : 23 model : 96 model name : AMD Ryzen 5 4600H with Radeon Graphics stepping : 1 microcode : 0x8600104 cpu ...
Jeff Luyet's user avatar
3 votes
2 answers
4k views

amd ryzen 5950x max frequency is 3400MHz on ubuntu 20.04

When I run lscpu, I get CPU max MHz: 3400.0000 CPU min MHz: 2200.0000 However, 5950x has a base frequency of 3400MHz and max of 4900MHz. How do I let ubuntu know that it can run up to 4900MHz? EDIT: ...
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847 views

How to run throttle stop script at startup?

I have tried this (How do I write a script that runs on startup?) to automatically run a throttle stop script at startup. But I cannot make it work. I've tried the methods (GUI app, cron job and /rc....
Mat S's user avatar
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6 votes
2 answers
9k views

Disabling AMD's equivalent (on a Zen-1 Epyc) of Intel's "turbo boost" at runtime?

This may be a terminology problem at my end and a duplicate: On Intel CPUs, I can relatively easy disable turbo boost at runtime by running something like echo 1 > /sys/devices/system/cpu/...
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