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.
77
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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%. ...
- 441
25
votes
4
answers
20k
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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: ...
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17
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3
answers
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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 ...
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12
votes
2
answers
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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?
- 32.8k
11
votes
5
answers
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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 ...
- 1,205
7
votes
4
answers
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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 ...
- 71
6
votes
5
answers
3k
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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 ...
- 133
6
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0
answers
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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 ...
- 169
5
votes
1
answer
2k
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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 ...
- 73
5
votes
1
answer
11k
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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.
- 101k
5
votes
2
answers
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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-...
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4
votes
2
answers
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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 ...
- 81
4
votes
0
answers
10k
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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
...
- 41
4
votes
0
answers
1k
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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), ...
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3
votes
1
answer
5k
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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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3
votes
1
answer
3k
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System monitor show 8 CPUs for my Intel i7-3820QM?
I have a new System76 Gazelle laptop with an Intel i7-3820QM CPU. My understanding was that this chip was a quad-core. If so, why does system monitor show 8 cpus?
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3
votes
1
answer
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Set Max TDP of Intel H-series CPU
I am searching for some program which deals with setting the max TDP of the CPU like we do in Intel XTU on Windows. I am able to undervolt the CPU with this project. I can also monitor the TDP of the ...
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3
votes
2
answers
2k
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C-states not fuctioning on Ubuntu Server 22.04. Please help
I’m putting together a home server running Ubuntu 22.04 LTS and I’m having a hell of a time with the c-states. Current power draw of the system is 33 watts but I’d like to lower that as far as ...
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3
votes
1
answer
940
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Ubuntu 18.04 Install Freezes the CPU
I'm trying to install Ubuntu 18.04 on a Dell XPS9560 with an Intel Core i7-7700HQ and It was freezing up on the splash screen. I started it again and disabled the splash screen in the GRUB command ...
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3
votes
1
answer
1k
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No microcode detected after installation and reboot
I noticed an error in GCP log:
[ 0.294304] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode
After installation, I then ran these commands:
sudo apt-get install microcode.ctl ...
3
votes
0
answers
200
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Third party graphics drivers on ubuntu 16.04 causing boot loop [duplicate]
About a week ago, I installed various system updates, including a package called intel-microcode. After rebooting, I discovered that I was unable to get past the login screen (i.e. I would login and ...
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2
votes
1
answer
1k
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Does Ubuntu 22.04.3 come with the Downfall patch pre-installed?
Does Ubuntu 22.04.3 Live CD/DVD image come with the patch for CVE-2022-40982 (i.e. with the latest intel-microcode package)?
I could not find this information in the release notes or the change ...
- 550
2
votes
2
answers
8k
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Undervolting Ivy bridge core i7 laptop with Ubuntu 16.04 - TLP & PHC not suitable
Linux noobe exploring the possibilities of Ubuntu.
My question is, how to undervolt my Dell E6530 with a core i7-3720QM?
I'm running Ubuntu 16.04LTS (Loving it!) and read the posts on here relevant ...
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2
votes
2
answers
4k
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Ubuntu 16.04 Skylake overheating
I recently bought a laptop boarding a skylake i7-6700hq processor, and I managed to install Ubuntu 16.04, however, I noticed that the laptop was overheating resulting to a very short battery life ...
- 51
2
votes
2
answers
4k
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Powercap (intel-rapl) - Changing long-term power limit
I'm looking for some clarification on how to use either rapl-set or powercap-set to change the long term power limit on my Intel N4200 laptop running Ubuntu 20.04.
Firstly, I know that my bios allows ...
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2
votes
1
answer
136
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What should I need to do after a CPU/IGP change in Ubuntu 18.04?
On the next week I'd like to change my cpu from an Intel G3930 to G4600.
What should I need to do and why? Can I change without reinstall anything? Linux can handle this automatic? Do I need for ...
- 361
2
votes
1
answer
6k
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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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2
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1
answer
3k
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How to confirm if undervolt is working in Ubuntu?
I have managed to under-volt my Intel 8750H by 150 mV using https://github.com/kitsunyan/intel-undervolt. But I am not sure if the settings are really applied.
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2
votes
1
answer
677
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Undervolting on Ubuntu
I decided to undervolt my cpu and I saw online there are 2 main programs to do it on Windows: XTU and ThrottleStop.
However it seems there aren't versions of these programs for Ubuntu or for Linux in ...
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2
votes
1
answer
2k
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CPU core stuck at 100% utilization
I noticed that my laptop's fans were running continuously at high RPM for a few hours. I installed HTOP to check CPU utilization, and found that one of the 8 cores is stuck at 100%. Even after ...
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2
votes
0
answers
721
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Ubuntu 22.04.4 running very slow after update from 22.04.2
I am using ubuntu 22.04.4 and I've noticed that after upgrading to this current version that the machine runs extremely slow from 22.04.2.
The base CPU clock always goes down to the minimum and causes ...
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2
votes
0
answers
1k
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High CPU Usage - No command
I've had an issue over the last few days with high CPU usage. It's at a very constant ~60%. I have tried using htop to identify the culprit, but unfortunately the command section is blank (as below) ...
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2
votes
0
answers
447
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Ubuntu 16.04 on MacBook Pro 8.2 (2011) - Overheated CPU temperature
Just installed Ubuntu 16.04 on sluggish Macbook pro and regretted why i didnt do it earlier. I have setup everything i wanted except couple of issues (touchpad is funky at times) but my majore concern ...
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2
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0
answers
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Why aren't all of my CPU cores always detected in ubuntu 14.04 with an Intel Core Duo 2 CPU?
I'm using Ubuntu 14.04.2 LTS with kernel 3.16.0-38-generic #52~14.04.1-Ubuntu SMP Fri May 8 09:43:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux.
Computer model: iMac Late 2009 ( https://support.apple....
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2
votes
2
answers
2k
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Ubuntu 14.04 High CPU Temperature but Fans Remain Silent
I am using Ubuntu 14.04 (3.13.0-32-generic) on my new ASUS n550JK laptop. It has Intel i7 4700HQ CPU and Nvidia GeForce GTX 850M graphics card (I have installed 340.24 driver from xorg-edgers).
The ...
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2
answers
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Is scrolling down Facebook web page causes high CPU usage normal?
CPU: Intel i5-2400
RAM: 8GB (dual channel)
No graphic card
I've tried the command below but it didn't work for me.
sudo echo > "options drm_kms_helper poll=N" > /etc/modprobe.d/local.conf
...
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1
vote
1
answer
853
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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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2
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2k
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How to troubleshoot CPU HW crash in Ubuntu 18.04
I bought a new computer a few months ago. I installed Ubuntu 18.04 and it's working fine except when I compile c++ code: it freezes hard as soon as there is a spike of high CPU usage (10+ cores).
The ...
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1
vote
1
answer
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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 ...
- 173
1
vote
1
answer
4k
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How to update possible C States
I've been running ubuntu 20.04.4 LTS on an old motherboard with intel i5 3570k. This CPU has a limitted number of C States available and as such power consumption was mediocre. I have now updated to a ...
1
vote
1
answer
339
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i3-6100 CPU stays at low frequency during load
About a month or two ago, my Ubuntu 22.04 system's performance took a sudden hit out of nowhere. I didn't changed any HW, I didn't messed with any configurations. After investigating a bit, I've found ...
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3
answers
3k
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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 ...
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1
vote
1
answer
1k
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Ubuntu 18.04 LTS Spectre/Meltdown Status [duplicate]
I could not find any official Ubuntu information on that issue.
If I check the official statement:
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SpectreAndMeltdown
there is only information on ...
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1
vote
1
answer
1k
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How do I tell if CPU Turbo is on or not on 16.04?
I'm using a command that has been recommended to me many times and all it turns up is this:
user@tux:~$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver
acpi-cpufreq
acpi-cpufreq
acpi-cpufreq
...
- 11
1
vote
1
answer
2k
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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 ...
user825380
1
vote
1
answer
2k
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Ubuntu freezes on intel atom
I have a laptop with an intel atom x5-z8350, and it keeps on randomly freezing. I already disabled the cstate and turbo, but it still freezes. Any other fixes I can try?
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1
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0
answers
847
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Gnome shell uses excessive amounts of CPU?
I'm running Ubuntu 22.04LTS, with only the Built-in extensions (i.e. Desktop Icons, AppIndicators and Dock) installed. Since updating to 22.04 I noticed that my mouse would begin to stutter frequently,...
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0
answers
1k
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Installation of Ubuntu 20.04LTS and 22.04LTS fails on my MSI Creator Z16 A12UET core i7 12th gen
I have tried severally to install ubuntu desktop on my MSI pc (model stated above) but it always fails run after. The installation completes without error but it always fails to work that is, boot to ...
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1
vote
0
answers
8k
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intel sgx enabled in bios but in ubuntu system the isgx driver keeps saying "cpu does not support SGX1 instructions"
I have a gigabyte b365m motherboard with the newest bios F3a and core i5-9600k. I have set intel sgx to "enabled" in bios but in ubuntu the isgx driver keep saying intel_sgx: CPU does not support SGX1 ...
- 11
1
vote
0
answers
700
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Artifacts in Ubuntu GNOME 17.04
I use Ubuntu 17.04 with GNOME DE and sometimes there are strange artifacts when i resize file explorer window - it turns into colored lines on black background for a moment (can't take a screenshot ...
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