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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Monitoring custom graph in CONKY

How to monitor a custom graph in CONKY. Right now I display the single values of the CPU frequency in GHz: CPU1: ${exec echo "scale=1; $((`cpufreq-info -c 0 -f`)) / 1000 / 1000" | bc | awk '{printf ...
3
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1answer
71 views

Laptop battery life

I have Asus TransformerBook TP500LB. Very good laptop - i5 5200U, 8GB RAM, nV 940M, ... But, when I run windows10, my battery life is somewhere about 6-7hours (very low brightness and no gaming as ...
2
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2answers
58 views

Low CPU frequency

I'm having the following problem with Kubuntu 15.10. Sometimes when I put my laptop(Dell e6420) to sleep and later wake it up, I see that CPU is running at really low frequency (~600Mhz) This is ...
0
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1answer
58 views

Dell Inspiron 5423 CPU low-power state Non-Dell Power Adapter

So I've been trying for hours now to get the CPU out of the low power state. The Processor is a Dual-Core with HT @1.8ghz however because im not using a Dell Adapter its missing the protocol chip that ...
1
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1answer
131 views

unable to set cpu scaling frequency

I have Ubuntu 15.04 on a clevo w605sj (Eurocom Electra 2), which gets very loud when the fan is on. Sometimes this is unacceptable, and so I'd actually rather throttle the CPU and take the ...
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0answers
89 views

Ubuntu Touch - can't keep cpu frequency set

I can't seem to set the cpu frequency. I've tried a number of utilities (e.g. cpufreqd / cpufrequtils), as well as just manually editing the cpu frequency using commands like: echo performance | sudo ...
0
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1answer
114 views

Frequency scaling

I'm trying to get the frequency of my CPU on max I can't seem to change anything via cpupower or cpufreq-utils, or even by modifying the files myself at /sys/devices/system/cpu/intel_pstate So I ...
0
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1answer
371 views

How to scale intel_pstate driver on Ubuntu 15.04?

I nearly tried all the solution to scale the cpu frequency but no success. I have Intel Core i5-3210m 2.5Ghz-3.1Ghz. I want to permanently set it to 1.6Ghz with no turbo boost to improve battery ...
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0answers
93 views

CPUpower sets the frequency by itself

Whenever I try to change the governor or CPU frequency with CPUpower, after 10-20 seconds it starts to go up again.Lets say I set the maximum CPU frequency to 1.5GHz it will go to 1.76GHz and then to ...
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1answer
233 views

Why does Lubuntu 14.04 Kernel Panic on boot when Notebook is connected to AC Power, but not when on battery

since Ubuntu kernel 3.13.0-59 (or possibly even -58) Lubuntu kernel panics on Acer Travelmate B115-M when the device is connected to AC, but not when it's starts with battery only. Older kernels ...
4
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1answer
172 views

How do I diagnose a sudden slowdown

Running a particularly compute-intensive task on my computer (Tecra W50) for more than a few seconds causes it to become very slow. Performance does not return to normal after the task completes. ...
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1answer
438 views

CPU running at 60°C on Yoga 13 – How to control fan speed?

I am running Ubuntu Gnome 15.04 on a Lenovo Yoga 13 laptop. My fan is constantly running. If have tried to solve the problem with TLP , but to no avail. I have also installed cpufrequtils. On ...
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1answer
240 views

My CPU clock speed is changing constantly. Is it normal?

I am running Ubuntu 14.04 on my laptop, and whenever I run cat /proc/cpuinfo | grep "MHz" I get varying speeds. I thought that clockspeed is a fixed property, which can be under clocked or ...
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2answers
931 views

How can I set the CPU frequency to always stay at its maximum?

Since I mostly use my laptop as a desktop, I'm trying to set its CPU to its maximum frequency. The CPU is an Intel Core i5-3337U (dual-core with Hyper-Threading), which caps at 2.5GHz (with 2 active ...
0
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1answer
165 views

Slow down CPU using indicator-cpufreq

I'm trying to slow down my CPU to play an old game (Windows 98). I've installed indicator-cpufreqand after using this help I managed to get it to work. However, I'm only able to select certain ...
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0answers
89 views

Reset CPU settings

I have made some tweaks with "powertop" and "cpufreq-set" which honestly I do not remember (I know I am stupid). I would like to reset because I made my laptop a bit slower so I can save battery, but ...
0
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1answer
52 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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0answers
307 views

How to disable cpu frequency scaling on MacBook Air

I am having problems disabling CPU frequency scaling on a MacBook Air 6,1 (dual core 1.4 GHz i5-4260U with hyperthreading) laptop with ubuntu 14.04. I need to disable the frequency scaling to install ...
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0answers
482 views

Dell XPS 13 2015 CPU performance on battery

I recently purchased a Dell XPS 13 with Ubuntu (i5 5200U CPU @2.7GHz) and I detected that system works slow on battery mode. cpufreq-info says: ... analyzing CPU 0: driver: acpi-cpufreq CPUs ...
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1answer
143 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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0answers
298 views

Ubuntu 14.10 cpufreq not working (not pstate problem)

About a 4-year old HP Laptop with a 2.8GHz i7, 8GB RAM. Has been upgraded individually from 11.04 through to 14.10, skipping 13.10. Since 13.04, after booting, cpufreq-info reports: current policy: ...
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3answers
2k views

CPU frequency control

I have a kubuntu 14.04 with the latest HWE kernel (3.16.0-31-generic), and a Xeon 1246v3 processor (which is basically an i7 4770 with ecc support). The processor has base frequency of 3.5 ghz, and ...
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2answers
3k views

Ubuntu is very slow when Intel SpeedStep is enabled (CPU is not used in full speed)

I have a Dell notebook with i7 processor and Ubuntu 14.10. When i disable SpeedStep in my BIOS my computer is very fast but the fan runs very often and the battery gets empty fast. When I activate ...
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1answer
521 views

Can I upper limit cpu frequency?

How can I upper limit my cpu frequency by a value? cpufreq offers fixing freq to a constant value, instead of letting it varying in a range. It also offers conservative, on demand, powersave, and ...
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2answers
639 views

High CPU Frequency at Idle

I've recently installed indicator-multiload on my laptop running Ubuntu 14.10 and noticed my CPU sits most of the time at high frequencies, even with very little load. It is an i7-4700MQ processor ...
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2answers
418 views

cpufreq-stats missing

I'm on kernel 3.16.0-29-lowlatency on cpu family : 6 model : 55 model name : Intel(R) Pentium(R) CPU N3540 @ 2.16GHz Unfortunately as the entire ...
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1answer
2k 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 ...
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1answer
509 views

Reduce CPU frequency in battery mode automatically

Is there any way to do that? Something like xbacklight and Cuttlefish
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1answer
666 views

indicator-cpufreq not working with kernel 3.17?

indicator-cpufreq have just two option (powersave and performance) after upgrade to kernel 3.17. Is there any way to fix it? I reinstall this program but still have same problem.
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1answer
561 views

indicator-cpufreq always shows only one bar on Ubuntu 14.10

On Ubuntu 14.10 the indicator-cpufreq always shows only one bar. I can switch between Performance and Powersave but the indicator icon never changes. It always shows only the one most bottom bar. I ...
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2answers
745 views

Overclocking with Ubuntu

I overclocked my CPU in BIOS using a multiplier. Everything in Ubuntu still shows the CPU frequency is stock. Is the CPU running at stock frequency, or is it overclocked like it's supposed to be? Is ...
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2answers
11k views

Why are missing the frequency options on cpufreq-utils indicator?

I just upgraded to utopic and the indicator for cpufreq-utils just show two cpu frequency options: Power save and Performance. Before in trusty: Now in utopic: Regards.
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2answers
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How to set governors for Intel to work as old good ondemand?

I used to work on my laptop on ondemand governor, which was switching CPU frequency depending on CPU usage. It worked quite nice for years and had three very important advantages: low hardware ...
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1answer
6k views

`indicator-cpufreq` doesn't seem to work on 14.10

I have a Dell XPS 12 and just installed Ubuntu 14.10 (by completely wiping out the old 14.04 installation). The indicator menu has 2 options, Performance and Powersave, from which I choose ...
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0answers
205 views

After upgrading my CPU cpufrequtils does not work

After upgrading my CPU (nothing else changed on my system) I can't change the governor of my CPU. I tried reinstalling cpufrequtils, but got the following error: Setting up cpufrequtils (008-1) ... ...
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2answers
5k views

Ubuntu and processor speed detection

I've got an older laptop that I use as a media center on my TV and I'm usually installing/reinstalling/uninstalling different OS' and Apps to get it to run as smoothly as possible. One thing I ...
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4answers
479 views

How can I tell how fast the CPUs are running on a POWER8 server?

I'm running with Ubuntu 14.04 on a Power8 server. Is there a way to tell how fast the processors are running? How do I enable the tools that come with powerpc-utils and cpufreq ? added.... ...
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2answers
1k views

Can I use TLP and CPUFreq at the same time?

I just started using ubuntu 14.04 recently. I read that it's good to have CPUFreq or TLP. I was wondering if it would be okay to have both. Would it cause any problems with the computer performance if ...
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2answers
2k views

Why is my CPU Frequency stuck?

After recent routine upgrades, I've noticed that I'm unable to change my CPU frequency manually. The system is doing it automatically, and choosing the highest frequency possible, which causes it to ...
0
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1answer
3k views

how do I enable AMD Turbo Core the cpu on my acer aspire 7560?

I have an acer aspire 7560 that on windows supported (through acer proprietary software) boosting the cpu from 1.9ghz to up to 2.5ghz for long periods of time so long as there was adequate cooling. On ...
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2answers
558 views

Turbo core not working

I got ubuntu 14.04 on hp pavalion g6 with an amd apu a6 llano which has a stock frequency of 1500mhz and is capable of boosting to 2400mhz. But on my system it's turbo boost feature is not working.
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1answer
155 views

Refresh indicator-cpufreq

Is there a way to refresh indicator-cpufreq / cpu frequencies after enabling a pstate on the cpu(without reboot)? Thank you.
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1answer
4k views

ubuntu 14.04 - only performance and powersave governor available (i5 4.gen)

After updating my ubuntu 13.10 to 14.04 there only these to govenors available for my cpu, instead of additionally ondemand and conservative. cat ...
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2answers
5k views

How to enable AMD Turbo Core on Ubuntu 14.04?

I'm using Ubuntu 14.04 (3.13.0-24-generic kernel) on AMD A8-4500m based laptop, and I've recently noticed, that AMD Turbo Core is not working at all. Everything works on Windows, however, on Linux CPU ...
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2answers
10k views

CPU Turbo boost: modify temperature limit under 14.04

I've installed kubuntu 14.04, and there is some problem with CPU turbo frequency. I've read a lot about it, but can't find the correct answer. There is an i7-3630QM CPU @ 2.40GHz with 3.20GHz turbo ...
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1answer
20k views

how to run cpufreqd in ubuntu 14.04?

I've just installed cpufreqd in a fresh installation of Ubuntu 14.04 through: sudo apt-get install cpufreqd After that, I tried to execute it by sudo cpufreqd. But nothing happens (neither error or ...
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589 views

lscpu output differs when called indirectly?

I use lscpu | grep 'MHz' to get my clock speed. I am getting different results based on the method I am calling this command. Method 1: typing it in the terminal CPU MHz: 1200.000 Method 2: ...
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2answers
2k views

AMD Turbo Core not working - Change CPU driver?

I Got an AMD FX(tm)-8350 Eight-Core Processor with 4GHz frequency and up to 4,2 GHz Turbo Core speed, but I cant get the Turbo Core to work. dmesg | grep powernow should tell me something like: [ ...
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1answer
959 views

trouble finding/installing cpu driver for AMD FX 8350

I'm very much new to Linux, but I've hunted for days and can not find any solution to my problem. I'm trying to use cpufreq to control the throttle on my cpu (AMD FX-8350, 64-bit), but I apparently do ...
5
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1answer
176 views

Why are the CPU frequency timing statistics all zeros?

The cpufreq timing statistics are all zeros: $ sort --unique /sys/devices/system/cpu/cpu*/cpufreq/stats/time_in_state | column 1600000 0 2100000 0 2600000 0 3100000 0 1700000 0 ...