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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How to add power governors?

my cpu is Intel n3710 , on Ubuntu 20.04 , I installed cpu freq utils , but it shows available cpufreq governors as only powersave and performance. Can we add other governors like ondemand , ...
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How do I write a script that runs on startup?

Newbie here. I have a Dell Inspiron 3442 who suffers from the "CPU stuck at 800Mhz" problem. In Windows, I used to run ThrottleStop at every startup and disable BD PROCHOT... So I installed Ubuntu ...
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How to turn off the CPU throttling mode?

I am trying to turn off CPU throttling function and set CPU frequencies to certain value but haven't been successful. Could anyone help me to figure out the problem? cpu Frequency I already tried ...
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Minimum cpu frequency set when charging and battery under ~7%

I have i7-7500U (@ 2.70GHz) and the intel_pstate governor is used, I've noticed when the system has low battery (under ~7% or so) and ONLY when charging, the cpus run at the minimum frequency (400 MHz ...
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Strange Processor Behavior

So now my processor boots locked at 800mhz every boot, and every wake-from-sleep. This occurs in both Windows and Linux. For Windows, I throttlestop and check/uncheck BD prochot and thermal prochot ...
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Why would gnome-system-monitor to get the CPU frequency? (18.04)

I have Ubuntu 18.04 and I can see my CPU and memory usage in system monitor, but the "Freq" widget remains empty. I checked some files under /sys/devices/system/cpu/cpu0/cpufreq/... and it looks like ...
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Ubuntu 18 set max cpu frequence

I'm trying to lower my cpu max frequency. I'm using a laptop which easily overheat. I've tried a number of different things but couldnt get it to work as intended. From what I can see, my cpu max ...
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Xfce, applet indicator-cpufreq, not working when set to Powersafe from Performance [duplicate]

Os Linux local 5.0.0-23-lowlatency #24-Ubuntu SMP PREEMPT Mon Jul 29 16:17:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux xfce4-panel 4.13.4 (Xfce 4.12) Issue I am using indicator-cpufreq applet. ...
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Preventing CPU throttling by kernel / Ubuntu

I'm having an issue with my CPU throttling down. I am on an A8 Quad Core machine with four 3 GHz processors. The model is a AMD A8-3870 APU with Radeon(tm) HD Graphics About 10 to 15 minutes after ...
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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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18.04 LTS: Turbo mode does not engage

Running Ubuntu 18.04.2 LTS 4.15.0-54-generic x86_64 Processor: Intel Xeon Gold 6230 The processor has a 3.9 GHz turbo mode, but does not engage it, even when running Geekbenchmark4 test: https://...
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Disable CPU frequency scaling?

I need to run ATLAS on my ubuntu laptop, but the software won't run unless you dissable CPU frequency scaling. I've tried the instructions from here http://math-atlas.sourceforge.net/atlas_install/...
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Can I change CPU governor?

When I run the command: cpupower frequency-info --governors I get the following message: this output available cpufreq governors: performance powersave I want to change it to 'ondemand'. How can ...
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Nouveau driver issue

The computer needs randomly two consecutive boots to start. Here is what happened: After installing indicator-cpufreq and running openssl speed together with turbostat, I needed two boots to start ...
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How to delete CPU-stats from cpufreq?

Is there a way to delete the old stats for a fresh start? I have set max CPU-speed to 950 MHz in file cpufrequtils. My issue is that this limitation is not in action when booting up, during which ...
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Laptop slow performance on battery power

I recently installed Ubuntu 19.04 on an HP ProBook 430 G3 and discovered the following issues. The battery won't charge when AC pluged-in until the level drops below 15% or less, sometimes even then I ...
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Processor caps at 800Mhz

When I do something that spikes the CPU, it seems to throttle the CPU to prevent overheating. This is fine. However when I stop, finish or close the program or process that is pushing the CPU, it ...
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Cpufrequtils not functioning after Intel P-State is Disabled

I have an Intel i9-7980XE processor. The application that I am trying to run requires me to switch off the Intel P-States and C-States. I do it via modifying the following: GRUB_CMDLINE_LINUX_DEFAULT=...
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CPU frequency gets throttled when using multi-window on Kubuntu 18.10

This is the current CPU frequency with power plugged in: $ cpufreq-info | grep -i "current CPU freq" current CPU frequency is 1.54 GHz. current CPU frequency is 1.58 GHz. current CPU frequency ...
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Apcupsd run script?

I want apcupsd to run a sript on the master computer in case the power is missing for my ups i have according to the guide from apcupsd added it in this folder: /Etc/apcupsd And called it: "...
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Is there a CPU monitor widget showing CPU frequency in GHz?

I have Kubuntu 18.10 with KDE Plasma 5.14.4 on a Lenovo laptop. Is there a CPU monitor widget showing CPU frequency in GHz? I would like a live monitoring from a widget in system tray in GHz. If ...
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What Linux kernel interfaces does the System76 Gnome Power Management extension use to set CPU governor policies?

Just for a reference, I am speaking about the following System 76 Power Management Gnome extension available on System 76 laptop. No matter whether I set the power management to "High Performance", "...
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CPU frequency too high even with 'powersave' governor

Recently I noticed my CPU sits most of the time at high frequencies, even with very little load. It is an i5-7300HQ processor which should use frequencies between 800 MHz and 2.5 GHz (3.5 GHz with ...
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After upgrade to 18.04, cpufreq scales all CPUs in unison rather than individually

I have an Intel i7-6900K, 8 cores/16 hyper threads. I have conky running on my desktop and it shows each of the 8 hardware core clock rates. Prior to the upgrade to 18.04 (from 16.04), each core ...
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Is irqbalance a bad thing?

I am using cpufreq gnome extension and it give's me warning irqbalance detected. Is that something to worry about? And if I somehow stop irqbalance will that affect the processor?
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CPU frequency at minimum, both on AC and battery. BIOS problem?

My CPU frequency is stuck around the minimum 800 MHz on my Dell Precision 5520. I've exhausted the solutions out there. Background My problem is quite similar to this question, but just that my ...
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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 ...
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CPU causing low gaming performance

Ok, first, english is not my native language, so I apologize for any poor phrasing. Second, I'm still learning about Linux, Ubuntu 18.04 to be more specific. This is the first time I use this OS and ...
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CPU Frequency Error. Ubuntu on Raspberry Pi

I have Ubuntu 18.04.1 installed on my Raspberry Pi and two USB devices attached: One small bluetooth adapter and one small Wifi adapter. I am connecting to the wifi network with wpa_supplicant like ...
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957 views

Why cpu frequency changing and it is not possible to stop this?

I am trying to disable cpu frequency scaling and limit the processor to a single speed. But something seem to be changing processor speed constantly. Any ideas on why this is happening? I am on 16.04 ...
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How can I lock CPU frequency in Ubuntu 16.04?

It's a Server (Dell PowerEdge R730xd) The CPU is Intel Xeon E5 2630 v4 2.2GHz The OS and kernel is Ubuntu 16.04 and 4.15.0-33-generic The current settings are as follows: intel_pstate is disabled ...
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My system freezes when it's in powersave

My Dell Inspiron 15 7567 laptop with Intel Core i7-7700HQ and NVIDIA 1050 ti graphic card with the Nvidia 390 driver freezes when I do activities like watch videos in full screen... I did post about ...
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859 views

CPU temperatures 90+ degrees Celsius on 2.5GHz and above

I noticed with the help of psensors that my CPU overheats to 90-97 degrees celcius if it gets above 2.5GHz. I am using a Lenovo Y720 laptop. I tested this both in games and by CPU stress test. I found ...
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Software Request Plasmoid For Kubuntu 18.04 to control CPU Frequency

There are many neer duplicates of this question but I recommend deleting ones that are not version specific (ie 18.04) as we cannot know if a solution will be viable on future versions. This is the ...
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Setting CPU frequency for an i5-430M

I run Xubuntu 18.04 on a Toshiba L505 laptop with an i5-430M CPU. Is there any way I can limit the maximum CPU frequency? This can easily be done in Windows 7 (by limiting CPU to e.g. 70%). Also, ...
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how to reset CPU max speed?

I've recently had a problem where my cpu was running at min speed constantly. This resulted in a very slow laptop and I found an article where one said it could be solved with this command: this is ...
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How shall I configure cpu frequency upon resuming from suspension of Ubuntu?

Problem: In Ubuntu 16.04, I run my shell script to scale down my cpu frequency to be 1600000, and its governor to be "userspace": sudo /home/t/program_files/hardware/cpu/cpuFreq/changeCpuFreq.sh ...
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cpufreq gnome extension keeps reverting to powersave

I'm using the cpufreq gnome extension. I manually set it to performance and, within a minute or so, it reverts to powersave. Anyone know what's going on behind the scenes? Output of cat /etc/init.d/...
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Serious CPU Scaling screw up that I need help solving ( underclocked and cant go back)

I've been searching this everywhere and I couldn't solve it yet so im praying (almost literally) that some1 can fix this. I wanted to underclock my laptop for more Battery life, so I searched and ...
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Turbo boost \ freq

I am trying to define my cpu freq when rendering in Maya for example, and I can't do it. the cpu stays at 2900MHz. When using windows, it use to jump to 4.2\4.5 in some scenarios. I found this thread: ...
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CPU governor not adhering to CPU Min/Max settings

Tried to force CPU to run at max speed after it refused to do so under times when CPU usage definitely should be at max, did so by manually setting governor to 'performance'. This didn't work, CPU ...
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how to reducing cpu frequency (I have spent over 2 hours trying)

I want to reduce my CPU frequency to less then the original johnul@johnul-HP-15-Notebook-PC:~$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little ...
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How to set “Performance” instead of “Powersave” as default?

When I start my Unity desktop the CPU indicator shows only one bar and it is set to Powersave. When I switch to Performance I have to enter an admin users password. But after system restart my CPU is ...
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Disable CPU frequency scaling and halts in Lenovo G50-80

I have a Lenovo G50-80 with an i5-5200U CPU running Ubuntu 16.04.2 on 4.4.0-79-generic. I would like to disable CPU frequency scaling and processor halts for running a project. I have installed i7z ...
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CPU freq always min when plugged in

I have a lenovo g510 with intel i7-4700 inside and after several months something strange has happend. When it runs using battery power everything is ok - cpu freq is scaling. But when it's plugged in ...
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cpufreq support for AMD 5350 on ubuntu 17.04?

On Debian 8 I was able to set cpu governor on a small computer with a AMD 5350 apu (kabini cpu). now using ubuntu 17.04, kernel 4.10, i get: no or unknown cpufreq driver is active on this CPU Any ...
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CPU frequency issue: What is idma64.0, and what triggers its hyper-activity?

Following up on the old question CPU frequency always at the maximum, I have found that sudo powertop gives a process called idma64.0 with 300 to 4200 events/second when the CPU frequency is stuck ...
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How do I utilize the full power of the CPU? Why is its full power not used when needed?

The CPU frequency is 2799 MHz even though the maximum frequncy is 3100 MHz. The System Monitor still shows 100% Utilization. How do I force the system to use the full capacity?** Why is the system ...
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373 views

CPU frequency goes to minimum appx. 40 seconds after booting/resuming

I'm on an Acer laptop with an Intel i7-4710HQ, which is nominally clocked at 2.50 GHz/goes to 3.50 GHz with turbo boost. As soon as I can run turbostat after booting or doing a suspend/resume, it ...
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616 views

CPU frequency always at the maximum

I have a new Acer Aspire laptop (bought in February, now running Xubuntu 17.04), and when the power is plugged in, the CPU frequency is always 3.5 GHz, but when it is not plugged in, 2.7 GHz. So it ...