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Questions tagged [intel-cpu]

Questions about CPUs built by Intel.

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1answer
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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 ...
0
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1answer
40 views

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 ...
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0answers
35 views

Ubuntu 18.04 Intel i5 4-Cores peaking one at a time

I'm having an issue with different programs making my quad-core i5 peak. Not sure exactly what to do. Any help is appreciated. Update: I was able to break it down to the “gedit” program. It drives my ...
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0answers
13 views

What's the processor default minimal state in Ubuntu 18.04

I can see that my power draw while idle is exactly 10% of current battery capacity. for eg. At 38 Wh i got 3.825W meanwhile at 31 Wh i got 3.096W I think it has something to do with minimal CPU ...
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2answers
35 views

Distribute workload among different CPUs

On my Ubuntu 16.04, I am running a program that is relatively expensive in terms of CPU usage. It takes quite much time to finish, and other tasks (like browsing the web) get slower as a consequence. ...
0
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1answer
148 views

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 ...
2
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1answer
224 views

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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0answers
31 views

CPUs not working at 100%

I recently upgraded my system to a i58400, 16 gb ddr4 and as os jumped from 16.04 to 18.04.1. Now im compiling Unreal Engine for Linux, so its supposed to be a heavy calculation and take many hours. ...
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1answer
231 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 ...
2
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1answer
62 views

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 ...
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0answers
231 views

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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0answers
3k views

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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2answers
2k views

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 ...
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0answers
57 views

my laptop overall performance is slower than windows

hi all is my amd driver really working ? cause my laptop is really slow ! i don't know the exact reason for the slowness i thought it maybe the gpu driver but i've checked and found this . so if it's ...
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0answers
200 views

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 ...
3
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0answers
530 views

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), ...
0
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1answer
78 views

Intel Bug: Much Ado About Nothing? [duplicate]

If I understand correctly, the bug allows to read in another process's virtual address space. To exploit this, the adversary needs to have a legal account on your personal computer, which is not ...
1
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1answer
676 views

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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0answers
265 views

What tweaks can be used to make Ubuntu run faster on a weak CPU?

Most tweaks pertain to low RAM systems or to making the system use the HDD less. In my system with a SSD and 8GB of RAM, the CPU (or SoC in the case of my Intel Celeron N3150) is the bottleneck. I ...
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0answers
491 views

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 ...
0
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1answer
772 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 ...
2
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0answers
302 views

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 ...
2
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2answers
4k views

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 ...
0
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1answer
996 views

Ho to set minimum and maximum processor state on ubuntu?

I would like to know how to set the minimum and maximum cpu state on ubuntu, like you do on Windows 10 on power settings. Just a way to control the MIPS and prevent CPU overheating when the thermal ...
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0answers
38 views

How To Use My Switchable GPUs?

I recently moved away from W10 due to it fucking up after a fresh installation. I have Intel HD 3000 & AMD HD 6470M on my laptop; with 4 GB RAM and i5 2430M During installation I checked "...
2
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2answers
3k views

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 ...
2
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2answers
4k views

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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3answers
542 views

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-...
0
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1answer
209 views

Ubuntu 14.04.3 overheating problems

My MSI GT60 0NC desktop is overheating and shuts down even if I'm just browsing and listen to music, it's a new Ubuntu installation no weird programs are running. I have installed the last NVidia ...
4
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1answer
1k 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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1answer
3k 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 ...
2
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0answers
2k views

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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5answers
4k views

Ubuntu runs super slow [duplicate]

I have an Acer Aspire computer that contains: Intel Atom CPU 1.33 GHz x 2 2.0 GB RAM Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits) Disk 243.9 GB I thought that Ubuntu would run faster than Windows 7, ...
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1answer
748 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 ...
2
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2answers
2k views

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 ...
3
votes
1answer
2k views

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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5answers
24k views

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 ...