CPU stands for Central Processing Unit, and is the main processing chip used in every computer. Brands include Intel, AMD and ARM. CPUs are commonly available in 32- and 64-bit, and come in a variety of frequencies or with multiple cores.

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AMD A10 8700p overheats on Ubuntu 16.04

I recently got a HP Envy 15 ah150na laptop with an AMD A10 8700p CPU and and R6 8700p integrated graphics card. The problem is that the CPU temperature after 10-15 minutes of usage goes up to around ...
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49 views

Software and Updater consumes 100% CPU in Ubuntu 16.04

I've upgraded my laptop (Lenovo Z50-70) which has an i7 CPU and 8Gigs of Ram to Ubuntu 16.04 from 15.10. I've been installing updates consistently. I'm using ubuntu with Gnome desktop environment (GDM)...
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34 views

Can't scale frequencies of AMD Turion CPU, it always jumps to lowest

I have similar problem to this: Can't scale frequencies, always jumps to lowest . This time on a HP Compaq 6715B notebook with AMD Turion CPU TL-58 and powernow-k8 cpufreq driver : $ cpufreq-...
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1answer
22 views

HIgh cpu usage for Compiz process on ubuntu 14.04

I'm having very annoying issue: the compiz process eats up to 50-60% of the CPU resources on my dedicated server. I'm not really experienced with Ubuntu. I need to help to disable visual effects and ...
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24 views

Laptop error problem

My laptop Acer travelmate 7750Z, Ubuntu 14.04 Intel core B960 gives every few weeks an error during working. Screenshot: Do I need a new processor?
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29 views

Ubuntu 16.04 random freezes every few hours

I am using an old AIO PC with a core i5 and every few hours the pc just freezes and doesn't respond to commands, sometimes I get a message saying, BUG: CPU#3 stuck for 23s! In these cases the magic ...
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1answer
51 views

CPUs are overused with internet browsers, maybe Ubuntu+i5+JS don's work well

I'm having trouble with the Ubuntu 14.04 on PCs Intel NUC i5 8 GB RAM SSD HD. They are used mostly with Google Spreadhseets and are high usage of internet browsers and JS applications. PCs are quite ...
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10 views

Certified HP server Intel CPU versions for Ubuntu 16.04 LTS?

The web-page http://www.ubuntu.com/certification/hardware/201509-19196/ indicates that the HP Proliant DL160 Gen9 server with processor Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz has been awarded the ...
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38 views

TLP not working on 16.04

I installed TLP on my laptop and set it up so that it should switch to powersave when on battery but it's not working. when I run tlp-stat -p this is the output when on AC: --- TLP 0.8 -------------...
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27 views

(x)Ubuntu becomes very laggy after hours

When I start my laptop, there is no problems : no lag, it's not superfluid but it's OK. After few hours (~4/5 hours) Ubuntu and Gnome suddenly become very very slow : 3 or 4 seconds of delay when I ...
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1answer
90 views

CPU frequency scaling stuck 2.80 Ghz and it's not going down

I'm using Ubuntu 16.04 LTS with gnome desktop. I set the governor to "ondemand", but the CPU still runs at top frequency. I tried many things, but it's stuck at 2.80 Ghz for hours. "scaling_max_freq" ...
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1answer
76 views

Why isn't Nvidia handling all graphics smoothly?

First post, but I've been lurking here for a while. I have been using Linux since Red Hat 7, I've recently upgraded to Ubuntu 16.04. It is my first Linux where the GPU is actually properly supported....
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17 views

Ubuntu Touch number of CPU cores

I have the Meizu PRO 5 Ubuntu edition and it seems it is using 4 cores. (top, cpuinfo) This phablet is running on Samsung Exynos 7420 64-bit 14nm octa-core (A57+A53) CPU, so where are the missing ...
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27 views

Wrong number of cpus in system monitor

I am running Ubuntu 16.04. I have two Intel Xeon E5-2683 V4 CPUs. Each CPU has 16 cores and 2 threads per core, but the system monitor only shows 58 processors. Why does the system monitor only show ...
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12 views

I need to set apt-build mtune directive on VPS ubuntu server

I need to set the right architecture for apt-build to work, in a VPS environment. Here's cpu-info detailed: processor : 0 vendor_id : GenuineIntel cpu family : 6 model ...
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17 views

Understanding the reason behind a freeze using system logs to file bug

My Ubuntu laptop just froze a few minutes ago (like it is frequently doing) making me reboot it using the hardware forced way. I would like to know the cause behind it so that if necessary I can file ...
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79 views

After Upgrade from Xubuntu 15.10 to Xubuntu 16.04 Acer Nitro VN7-792G Cpu running to hot

I recently upgraded to xubuntu 16.04 and have noticed the CPU temperature reaching between 55-85 C although the CPU load is the same as before I upgraded. This is about 10-15 C higher than before the ...
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1answer
98 views

Ubuntu Backups consume 100% of cpu

I'm using the Ubuntu pre-installed Backups software, with Ubuntu 16.04 for Desktop (but perhaps the same issue was on older Ubuntu also). Each time it starts (once a day) it consumes 100% of cpu ...
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2answers
451 views

Ubuntu 14.04 or 16.04 LTS?

I just got a new laptop that has an Intel Celeron Quad-Core processor of 1.83 GHz. On the Ubuntu 16.04 LTS website, they say the recommended minimum processor requirements are of 2.5 GHz. Are they ...
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1answer
248 views

Fan noise, too hot, lagging, Ubuntu 16.04 on laptop hp pavillion g6

The CPU is overused near at 100% with no reason and I've read that maybe is a graphics problem so below i have my specs if anybody could help. Laptop specs: hp g6 pavillion cpu intel core i3-3110 2....
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2answers
37 views

How to show size Ram and CPU ussage in Ubuntu?

I am newbie in use Ubuntu so I don't know how to show Ram and CPU usage which is the same in Task Manager on Windows. It can show by command line in Ubuntu or Application to see more.
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1answer
290 views

Ubuntu 16.04 slow [closed]

I've recently made the switch from Windows 10 to Ubuntu 16.04 (64bit), but I've begun noticing that a lot of things are running a lot slower. A few examples: Fast-forwarding video files (using VLC) ...
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1answer
31 views

Video card like frying pan (heating)

I've installed the new Ubuntu 16.04 LTS (Unity) and sensors. This is what the sensors command gave me: acpitz-virtual-0 Adapter: Virtual device temp1: +64.0°C (crit = +89.0°C) temp2: +...
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16 views

assign multiple cpu to process in linux

How do I assign multiple CPU to a single process in Linux. I want to assign at least four. I have already tried htop to see which CPU are used and it says any from 0-11. I want four dedicated CPU.
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146 views

how to setup cpupower at boot time in Ubuntu 16.04?

Ubuntu users! I have a Intel computer running basically as a HTPC machine for years 24/7 and at a certain point in time the Linux kernel started to use the intel_pstate driver for my i7 Ivy Bridge (I ...
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4answers
79 views

Best desktop enviroment for old PC [duplicate]

I don't know if this is the right place to ask this question, there may also be duplicates, I just want to ask: Which will be the best DE for: Pentium 4 3.6 GHz (2007), 1GB DDR2 RAM, Intel 915G ...
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3answers
549 views

High CPU Temperature after switch to Ubuntu 16.04

The idle CPU Temp of my Intel i5-3210M CPU was ~40°C on Ubuntu 14.04. Now, after upgrading to Ubuntu 16.04 (complete reinstall) it idles at ~52°C. Battery lifetime is also noticeably lower. What can ...
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1answer
42 views

Temperature sensors broken?

I just followed this guide to install lm-sensors on my machine but the output I get is kind of weird: asus-isa-0000 Adapter: ISA adapter cpu_fan: 0 RPM radeon-pci-0008 Adapter: PCI adapter ...
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1answer
22 views

How do you hotplug enable new CPU and RAM in a Virtual Machine

I am running Ubuntu in a virtual machine and I'd like to add CPU and RAM without rebooting the device. How can I hotplug this new virtual hardware?
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1answer
139 views

Can't disable turbo boost since Ubuntu 16.04

I've recently updated to Ubuntu latest LTS. My computer suffers from bad cooling management, and I need to be able to disable turbo boost in order to use it comfortably. I had a script that was doing ...
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1answer
33 views

How to run a job in several machines that have Ubuntu as operating system

I need to run a job in several virtual machines exists in a specific cloud and I have the IP address for all of them and I configured the hostname for all of them. How to run a command in a network of ...
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18 views

Have: HP ENVY Desktop - 750-167c - Updated to Ubuntu 16.4, Need HW support

Have: HP ENVY Desktop - 750-167c Updated to Ubuntu 16.4 Need HW support! I keep getting an "HP update drivers" box when I boot the system. I click "OK" and nothing happens other than the next time I ...
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1answer
319 views

KswapD0 use 100% CPU

After upgrde from 15.10 to 16.04, I noticed my netbook fan was constantly turning at full throtle. I checked the process mnitoor and noticed KswapD0 used 100% of one core. What is the problem ? ...
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2answers
1k views

Does Ubuntu 16.04 support intel 64 bit processers [duplicate]

I am using Ubuntu 14.04 32-bit LTS for a while and I'd love to try Ubuntu 16.04 64-bit LTS. In Ubuntu download page I found 64-bit ISO image as ubuntu-16.04-desktop-amd64.iso, I am bit confused ...
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1answer
63 views

Installing gfortran and mpich for a new Ubuntu user

I am a long-term Mac user who is considering switching to Ubuntu. I am not a system guru. I program in fortran and mpi for cfd applications on high-performance computers. I am considering ...
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1answer
86 views

Does Ubuntu already support Intel Speed Shift?

Does Ubuntu already support Intel Speed Shift? If not, when will it support Intel Speed Shift? I'm looking forward to use it with my new Skylake Mobile CPU.
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40 views

kworker CPU hog - waking up from suspend

I have the (apparently very common) problem of 'kworker' hogging CPU usage. As mentioned here, the solution for many is identifying the problematic 'gpe'. This solution seems to apply to my situation, ...
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26 views

indicator-cpufreq frequency lost after suspension/hibernation

As the title, I'm using indicator-cpufreq to set the frequency of the CPU. It's really useful when you are on battery and you want to save some power. However, when I wake the laptop after a ...
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0answers
43 views

How to force enable Turbo Core (AMD) on Ubuntu 15.10?

I'm running a Samsung Ativ Book 9 lite with Ubuntu 15.10 installed. The processor is supposedly equivalent to an A6-1450 Temash 1.0 GHz (1.4GHz boost) The problem I'm having is that turbo mode only ...
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18 views

Monitor CPU and bandwidth usage of cpu and save to csv

I would like to monitor a specific process. I need to know timestamp, CPU usage (%) and Bandwidth (tcp upload and download in % or byte/s) of this process. I have tried something like this: ps -Ao ...
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1answer
71 views

Throttling stuck below limits on a cool cpu

This is an issue widely discussed earlier. Still, none of the suggested methods/procedures has worked for me. I'm running Ubuntu 14.04, kernel 4.4.0-040400-generic on a fanless mini computer, Intel ...
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2answers
43 views

Ubuntu 15.10 unable to detect all CPUs

lscpu lists the following venki@venki-H8DCL:~$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 12 On-line ...
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1answer
78 views

BayTrail CPU and Ubuntu 15.10

I have a machine with an Asrock q1900b-itx mobo and I'm experiencing random freezes of the system. By freeze I mean everything hangs and there is absolutely nothing that can be done except reset. I've ...
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37 views

Inspiron 15 fan doesn't work

System configuration Win10 and Xubuntu 15.04 Dual boot i5 4200U Radeon 8850M Latest BIOS from dell tlp on Xubuntu installed. No more tweaks. coretemp module was loaded fglrx is not installed Idle ...
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90 views

Reduce load average on Ubuntu 14.04

How to I reduce the average CPU load on Ubuntu 14.04? I have a low end PC and whenever I start Google Chrome the load average is at ~2,5-3 My Computer Specifications are: Intel(R) Celeron(R) CPU ...
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35 views

Question on Ubuntu 15.10 high CPU usage again

I have a clean installation of 15.10. Recently the system may suddenly go into high CPU usage. I tried to search the for the answer. The answer is typical to check with process is using the CPU. But ...
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56 views

Can't install software because Ubuntu thinks my Intel processor is an AMD

Today I have tried to update Chrome and also to install XnView (photo viewing software) on my desktop machine with an Intel® Core™2 Quad CPU Q6600 @ 2.40GHz × 4. Each time I get a message that I have ...
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1answer
41 views

In need of cpu monitoring tool that logs activity

I'm currently hosting a dedicated server that is running Ubuntu 14.04.3 LTS 64bit, recently ive been getting weird rare crashes/timeouts on my gameservers where players simply lag and then disconnect. ...
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50 views

Ubuntu not booting after upgrading RAM and cpu

I have a Ubuntu machine running on Hyper-V It is the 15.10 version 64 bit. I tried to shut it down and then upgrade it from 8 GB og ram to 16 GB and from 2 processor cores to 8. But when I turned it ...