Questions tagged [frequency]

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Enabling/disabling Intel Turbo Boost per core

I have a laptop running Kubuntu 20.04 LTS, with a Core i7 cpu (8 physical HT cores, that is 16 logical cores). It gets very hot and/or noisy because of Intel Turbo Boost, that I don't really need most ...
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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 ...
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1answer
139 views

CPU package power consumption is connected to nVidia GPU P-states which caused CPU to throttle during load

CPU: 7700HQ GPU: GTX 1050 I used Prime95 to stress the CPU (using AVX2). It stabilized at 3.0GHz@45W after few minutes. It was expected result so nothing new here. After that I installed nVidia driver ...
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CPU frequencies wrong

So after I installed Ubuntu to my laptop, I was amazed at how quiet the laptop became. Previously on Windows the fans constantly ran at full speed. However, when I started gaming on it, framerates ...
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5GHz frequency available but networks not showing up

My laptop has 5GHz support for Wi-Fi but 5GHz networks are not showing up. Only 2.4 Ghz networks are being listed. 5GHz networks are working perfectly in Windows. In Ubuntu, they're not showing up. My ...
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How can a spectrogram of a sound be plotted between a defined upper and lower frequency bound?

I would like to plot a spectrogram of a sound between a range of frequencies, specifically from 0 kHz to 2000 Hz. Using SoX (sox sound.wav -n spectrogram -x 1000 -y 800), I have been able to make a ...
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110 views

What makes my CPU frequency drop on intensive application?

I am currently developing a software related to robotics, using Ros and the OpenVino toolkit on Ubuntu 18.04 LTS. I am doing some intensive computation related to computer vision, so I am looking for ...
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108 views

Why does Ubuntu run my processor well below its base clock speed and how can I get it to match the processor's true speeds?

I recently built a new desktop with an AMD 5600X processor, and am running Ubuntu 20.04, Windows 10, and Linux Mint on it natively. The processor is supposed to run at a base clock of 3.7GHz and boost ...
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69 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)
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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 ...
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187 views

Applications are ignoring/exceeding user-set CPU frequencies limitations (20.04)

I've been trying to limit the maximum allowed CPU frequency on a 2nd gen Intel i7 CPU. To do that, I tried: sudo cpupower -c all frequency-set --max; TLP, setting both the percentage and frequency (...
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Does not return maximum and minimum frequency in lscpu

I wanted to find out my computer's CPU frequency I only get CPU MHz:1800.002 BogoMIPS:3600.00.Why not showing minimum and maximum frequency?
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Ubuntu 20.04.1 LTS with 5.4.0-52 kernel sets CPU near max frequency even when idle

Update: Tried more things randomly and found out that the issue happens only when a USB sound card is plugged in and enabled. It does not create a high load on the CPU but causes the CPU to run at ...
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Why is the CPU frequency stuck at half the maximum tolerance? [duplicate]

I have an old Processor Intel® Core™2 CPU T7200 @ 2.00GHz × 2 Why is the current frequency stuck at 1GHZ if the CPU is built for up to 2GHZ? Here are the frequency #s when I run the following script ...
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How to update CPU frequency policy?

I have an Asus Laptop with i7 + ubuntu 18 (Linux 4.15.0-117-generic) A few days ago, I don't know how, my PC became very slow. After several investigations I've found that the CPU is always at minimum ...
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291 views

How to lock Xeon cpu frequency to a specific clock rate?

So I am using a Xeon 2620 v4 through ssh/command line only. I have sudo access and have set all CPU governor to performance mode. However, when I set the frequency using: "sudo cpufreq-set -f ...
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Intel i7-1065G7 does not reach maximal turbo boost frequency

I have a laptop with an Intel i7-1065G7 cpu. turbostat reports 35 * 100.0 = 3500.0 MHz max turbo 8 active cores 35 * 100.0 = 3500.0 MHz max turbo 7 active cores 35 * 100.0 = 3500.0 MHz max turbo 6 ...
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Spiking CPU frequency on Thinkpad X220 with i5-2540M Processor, Ubuntu 20.04

I encounter a strange behavior on my laptop (Thinkpad X220, Intel i5-2540M CPU). I recently switched from Windows 7 to Ubuntu 20.04, and I was hoping that everything would just perfectly work. After ...
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85 views

Adding ram to my hp laptop

I want to add 4gb ram to my laptop but confused which one should I buy as I can't figure out my ram type. sudo dmidecode --type memory | less is giving this output Handle 0x0025, DMI type 16, 23 bytes ...
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CPU frequency drops to and is capped at 0.48 GHz [duplicate]

I have a Dell Inspiron 7348 (BIOS version A13, the most recent) and the CPU frequency is always capped at exactly 480 or 490 MHz. I had this same problem under win10 but modifying a registry key for ...
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3k views

Can I install Ubuntu 20.04 LTS on Intel Pentium Silver N5000 1.1 GHz, without problems?

Background information: I intend to install Linux on a laptop with the following specs: CPU: Intel Pentium Silver N5000 Base frequency: 1.1 GHz Max Turbo frequency: 2.7 GHz Cores: 4 (no hyper-...
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how can I control my cpu frequency form a kde widget

I noticed on the distro on the PineBook it has a widget to control cpu frequency is their a way to do this on a intel CPU on kde to save battery
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900 views

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 ...
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8k views

How to enable CPU Turbo-Boost in Ubuntu? [duplicate]

I'm having server with 9700K and want to enable turbo-boost to get 4.9 GHz. I've installed cpufrequtils and set performance mode. Via 'cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' I'm ...
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8k views

GUI or simple Bash script to throttle the CPU?

I have an issue with a Chuwi Hi10 Pro. It occurs in Linux and Windows. When the screen brightness is too high, or the CPU is at 100%, while plugged in, the battery starts to drain. It is a very slow ...
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2k views

CPU frequency limited when AC adapter is on, but no limit with battery

Here I got a strange problem with my ThinkPad X200. This notebook uses Intel(R) Core(TM)2 Duo CPU P8600, which has a designed frequency of 2.4GHz. When I use battery only, the maximum scaling ...
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282 views

Filter high-pitched sound on live audio

I am running Ubuntu 18.04 Sometimes, I'll play a media file and it would have been encoded badly and there will be a very high-pitched whine in the background. Is it possible to block sound from ...
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1answer
2k views

How to change "scaling_max_freq" file (set max frequency higher)?

I have AMD A6-7310 which supports boost clock of 2.4 GHz. But, in Ubuntu 18.04, it only goes to 2.0 GHz. If I go to: /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq and open that file, it ...
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23k views

change min and max cpu frequency

Is there a way to change min/max frequency for the CPU in Ubuntu 18.04 Bionic beaver? I want to lower my max CPU frequency to maybe 1700000 to make my laptop run more silent. Below is CPU frequency ...
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2k views

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 ...
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461 views

Manually setting CPU's TSC value

On my system Ubuntu 16.04.1 with Kernel 4.13.0-36 the following TSC frequency is detected: dmesg | grep MHz: [ 0.004000] tsc: Detected 1800.000 MHz processor I have an Intel i5-8250U ...
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316 views

Can't limit cpu frequency Ubuntu 17.10, Acer Swift 3 (i5-8250)

I recently bought this laptop, I'm used to my limiting the CPU on my old one to avoid it getting too hot and extend battery when that's a priority over performance. However, cpufrequtils doesn't do ...
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210 views

Finding the frequency of CAN (controller area network) send and receive messages

How can I find the frequency of CAN send and CAN receive messages using Ubuntu terminal? I'm sending CAN messages using a serial port and receiving it with a Peak CAN USB. I can find the bit rate ...
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1answer
3k views

Setting intel GPU limits in Ubuntu 17.04 no longer works

I was using Ubuntu MATE 16.04 before, but recently switched to 17.04 because it came with updated thermald and I assumed it will fix bugs like this for me. I had problems with thermald in Ubuntu 16.04 ...
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1answer
1k views

intel-pstate processor frequency very high even if in idle

I am running Ubuntu on my asus laptop with i7-4710HQ processor. I have some issue with cpu-freq scaling. When I use intel-pstate driver the frequency is always high (90% at 2.5GHz). I have read the ...
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3k views

I cant set the cpu frequency to maximum

i just want to set the maximum frequency of my cpu, it can go from 1.7GHz to 2.4GHz, i used cpufrequtils and tried "performance" and "userspace" but it didn't work. Here's is my cpufreq-info output: ...
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Ubuntu 16.04 i7-4790@3.60GHz CPU frequency capped at 0.8GHz (20% of max)

I have been running Ubuntu for a couple of months on this machine now, and all of a sudden the CPU's frequency is refusing to go any higher than 0.8GHz (20% of maximum) despite it running fine at 3.8-...
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1answer
2k views

How to set CPU scaling limits System-wide

I am trying to make my cpu to stay in 2.0GHz (To keep the CPU cool XD) or above with a conservative Governor, for that tried to configure minimum frequencies for my CPU using cpufreq-set I need to ...
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3k views

Disable Hyperthreading, p-state and c-state drivers and CPU frequency scaling

I am trying to disable de p-state and c-state drivers on my desktop, i did what is described in this topic: Disable CPU frequency scaling Then i changed the grub-file: GRUB_CMDLINE_LINUX_DEFAULT="...
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672 views

Wrong Minimum frequency Core i7 CPU

The problem with my Linux machine is, the frequency reported by the files cpuinfo_min_freq and scaling_min_freq show 1200000 but in Windows it can be slowed down to 900000. This causes my Laptop to ...
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1answer
60 views

Ubuntu phone (Aquarius 4.5) change of UMTS frequency

I recently moved from Switzerland to Colombia. Apparently the UMTS frequency of my operator (Tigo) here is 1900 MHZ while the phone is on 2100 MHZ. Therefore I can't get a connection. Is there a way ...
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2answers
750 views

Forcibly reduce usable CPU

I'm looking for some sort of method to reduce the heat produced by my laptop. I was wondering if there is a method to throttle the CPU usage in Linux. I have a laptop whose fan seems to be going a ...
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6k views

Indicator displaying current CPU frequency and usage

Unfortunately, it seems that cpufreq indicator is only showing an icon indicating proportional frequency instead of precise number I would like to see. Is there any indicator showing actual CPU ...
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1answer
2k views

Frequency scaling no longer works after kernel upgrade

Using kernel 3.13.0-37, CPU frequency scaling works and I can control it using the CPU frequency control applet. I have upgraded to kernel 3.16.0-38, the applet now informs me that CPU frequency ...
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1answer
380 views

Problem with CPUPower

I have set my CPU frequency to min and max, but when my laptop is plugged to the adapter it changes it automatically the min and max frequency to the maximum CPU frequency (2.2Ghz). When it is ...
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1answer
1k views

CPU frequency limit to 2000 on battery

I want set frequency to 2100 in battery mode but it have limit to 2000. I ran tlp ac and change CPU frequency with indicator-cpufreq to 2100 (and also check Performance) then check frequency with ...
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2k views

How can I read the Haswell Uncore frequency from Ubuntu 14.04?

I want to be able to read and if possible, change the uncore frequency for Haswell microarchitecture in Ubuntu 14.04. I know that CPU frequency can be changed by modifying values at /sys/devices/...
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1answer
1k views

Wifi connection deauthenticated by router

I use ubuntu 14.04 and I have an Acer V3-571G laptop. I have an O2 Box 6431 modem which I have received from O2. My wifi connection works fine except when I restart ubuntu or laptop. Next time it does ...
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2answers
884 views

Change Frequency But nothing different

My problem here: root@LeAn:~/Desktop# sh MinPower.sh CPU MHz: 1200.000 root@LeAn:~/Desktop# lscpu | grep MHz CPU MHz: 1200.000 root@LeAn:~/Desktop# python TestCpu.py 11....
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14k views

TLP don't change CPU frequency

I check CPU clock speed with cat /proc/cpuinfo | grep "MHz", After sudo tlp start and sudo tlp bat still frequency is 2100MHz (Maximum). Could you please help me to solve this problem? I'm using ...