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Questions tagged [intel-cpu]

Questions specifically pertaining to CPUs built by Intel. Do not use this tag purely because your system happens to have an Intel CPU in it.

71 questions
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3 answers

Why is Kubuntu using much more CPU than Windows in YouTube and other web browsing use?

I am just moving to Kubuntu from Windows. And i feel that browsers on Kubuntu cost so much CPU to work. Example: When I watch Youtube: In windows, CPU is around 12%. In Kubuntu, CPU is around 50%. Same result w/18.04 & 19.10, plus Ubuntu…
Thuat Nguyen
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25
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4 answers

Set CPU temperature throttle threshold on Ubuntu/Thinkpad

I receive following error messages a couple of times per hour: 08.03.18 21:27 kernel CPU0: Core temperature above threshold, cpu clock throttled (total events = 2234) 08.03.18 21:27 kernel CPU2: Core temperature above threshold, cpu clock…
Christopher Will
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12
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2 answers

Show Lenovo Yoga 730 fan speed in Kubuntu

On my Lenovo Yoga 730-15IWL with a i5-8265U CPU, the sensors-detect command cannot detect the fans, so sensors cannot show them either. How can I show the fans speed on such a system?
rubo77
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5 answers

Do the latest Intel Core i3/i5/i7 processors just work?

I am thinking of buying a new laptop, and need Ubuntu as my OS. Is it true that the latest Intel i3, i5, i7 CPUs work properly immediately after install, or do I need to install some additional software/drivers for them to work? I'm just curious if…
Beni Bogosel
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10
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3 answers

How to disable tracker on ubuntu 20.04?

I purchased a new acer i7-1165G7 @ 2.80GHz × 8 laptop installed ubuntu 20.04 along with dual boot Windows. Whenever I start the laptop either in windows or ubuntu both are making very loud noise. I suspected fan was faulty so I gave it to replace…
user3704712
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7
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4 answers

CPU overheating in Ubuntu 18.04

As I was checking the kernel logs I noticed : kernel: CPU2: Package temperature above threshold, cpu clock throttled (total events = 13430). I have 4 CPUs and all of them have the same issue. My laptop hardware info : K46CB (ASUS-NotebookSKU) CPU…
Navid
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6
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5 answers

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 seems though as if the throttling never lifts. My…
DannyBoy
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0 answers

How do I setup Intel SGX on Ubuntu?

I want to use Intel SGX on Ubuntu. I have a Dell Inspiron with an Intel i7-8550U, and that CPU supports SGX. I am running Ubuntu 18.04 from a bootable flash drive (my main OS is Windows 10, typically I use a VM for my Linux dev, but a VM seems…
danxinnoble
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5
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2 answers

i3 throttled at 500Mhz when battery under 30%

I have the following problem. As soon as the battery drops below 30%, the CPU is being throttled to 500Mhz. As soon as I plug in the power adapter, it goes back to normal. The laptop is a Lenovo U41-70, I am running Ubuntu 15.10 x64, the CPU is an…
daniel
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5
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1 answer

Is it possible to install intel-mkl on Ubuntu 18.04 LTS?

I know that this package is available via official repository only from Ubuntu 20.04 LTS and in newer versions.
N0rbert
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4
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CPU doesn't use TurboBoost in Ubuntu 17.10

I have Lenovo Ideapad 720s 14 with an Intel i7-8850U CPU, using Ubuntu 17.10 with kernel 4.13.0-31-generic. I use i7z to measure clock speed. My CPU refuses to boost above 1.8GHz (its base frequency), even on single-threaded workloads with plenty of…
Morten Lohne
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4
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1 answer

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 well). In task manager I can see, that CPU frequency…
kubrdom
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How to enable all the cores available in ubuntu 18.04

When I executed the command: sudo lshw | grep core It's showing following output: cores:2 cores_enabled:1 threads:2 How can I enable both cores? (Ubuntu 18.04). Edit: No options visible in BIOS output for: cat /etc/default/grub is output for sudo…
karun j
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2 answers

Install OpenCL on ubuntu 16.04, Intel i5 7th gen Dell Inspiron Laptop

I recently purchased a Dell Inspiron 3000 series laptop with an Intel i5 7th generation processor. The machine came preloaded with Windows 8 but being an Ubuntu loyalist, I installed Ubuntu 16.04 on it. I need to work with OpenCL on my laptop for…
AnirudhJ
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1 answer

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 timings. Please tell it accordance with intel_pstate…
AhmedBilal
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