Yeap it helps and it is quite clear.
Still another remark. Sorry for going on with the digression here.
If there is a more proper channel we can move there.
In my old laptop when I load it with a single thread application I get
TURBO ENABLED on 2 Cores, Hyper Threading ON
Max Frequency withou
Each CPU can have a different request into the PLL (phase locked loop),
but the highest one wins, and their vote does not count if they are in
an idle state deeper than C1. You can observe this manually by reading
the pstate request and granted MSRs directly (requires msr-tools, and
the msr module
I guess you mean "there is only one PPL in the CPU, all cores get the
resulting clock". This would mean the readout of i7z in the idle case,
where each core has a different multiplier and a different clock, is
fake.
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There is only one PLL (Phase Locked Loop) in the processor, all CPUs get
the resulting clock. When they go into deep idle states (deeper than C1,
at least for my processor) then they give up their vote into the PLL as
to what the frequency should be. Your single 100% task is dedicating the
CPU freq
@Doug Smythies: thanks for the reply.
I'm sampling every second.
Anyway, just to better understand.
When my system is idle all cores spend in C0 less than 10% of the time and the
frequency of each core reported by i7z is different and below 2.2GHz. When I
run a single core (and single thread) ta
@Davide Sangalli: What you describe and show in your comment #80 is
correct and exactly what should happen. Your processor is spending an
extraordinary amount of time in C1 as opposed to deeper idle states. At
what sampling frequency do you run i7z? I would suggest once every 15
seconds or so, so t
I also mention that, monitoring with i7z the clock of my CPU, when intel turbo
is not working I get different freqs for each core
Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 %
Temp VCore
Core 1 [0]: 1126.19 (11.23x) 7.9993.9 1
An update. After some digging the conclusion I is that the problem in
my case is not linux but might be the Asus BIOS. Even just enetering the
BIOS the CPU temperature is rising up to 70-80 degrees. I'v e also
upgraded the BIOS, but without significant improvements.
I have the impression the BIOS
Same problem. I use laptop PC, Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz, GPU
GeForce GTX 1080 * 2.
DISTRIB_DESCRIPTION="Ubuntu 18.04.3 LTS".
Linux kernel version is "Linux anomalydetect 4.15.0-66-generic".
I tried "cpupower" that controls CPU clock frequency.
cf. https://wiki.archlinux.org/index
Acer aspire a715-71g. Same problem. Laptop overheating when i switch on
nvidia proprietary driver. On ubuntu 17.10 it worked fine.
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** Information type changed from Public to Public Security
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.0
Same problem here.
Ubuntu 18.04.3 LTS
I tried kernels 4.15, 5.0 and 5.3 and the problem persists.
With default installation parameters CPU temperatures goes above 95° very
easily.
The only way I managed to keep the CPU temp down is:
a) setting
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstat
Same problem. XPS 15 9570, freshly installed Ubuntu 18.04.3. 70-99
degrees while using browser + IDE. Disabling turbo boost keeps it under
80 degrees, but that's not a solution. intel_pstate is enabled,
disabling it does not help.
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Have the same overheating problem on all my Lenovo laptops.
T520i (Intel graphics), Kernel: 4.6.0-040600
W510 (Intel/Nvidia), Kernel: 5.0.0-25
T530 (Intel/Nvidia), Kernel: 4.4.0-157
intel_pstate is not solving the problem. But I noticed it only overheats
when watching videos in fullscreen mode.
** Tags added: cscc
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To manage notifications about this b
I'm not sure if this is related but just in case. I upgraded from
16.04.1 LTS to 18.04.2 - straight after I started getting alarms from my
SNMP monitoring, low voltage VBat etc. Upon checking the sensors output
I can see it's all messed up:
Linux host.no.domain 4.15.0-48-generic #51-Ubuntu SMP Wed
UPDATE:
Solved by disabling bluetooth in bios according to:
https://askubuntu.com/questions/1028883/ubuntu-18-04-systemd-udevd-uses-
high-cpu-conflict-with-wifi
It is silent and cool now.
Under the link you can find guys saying that this systemd-udevd 100% cpu
usage is because of the dell bluet
UPDATE:
After blacklisting nuoveau and installing nvidia driver, there was no overheat
shutdown, but the cpu is on full speed all the time. and the tempetature is 87
celsius constantly.
I tried disabling pstate, using tlp, neither worked so far.
Here is a usual frame from top:
top - 21:19:30 up
I have the same problem on my Vostro 3500. I'm using the
4.15.0-47-generic kernel with Gnome 3.28.2 on 18.04.2 LTS. Temperatures
are at 67-81C and using Win10 on the same laptop the temperatures are
45-57C with no apps running in either OS.
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Recently I formatted and reinstalled the version 18.04.1 Now the
overheating problem is gone. Everything is working just fine
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Followed instructions from #67.
Running 'cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver' to
check for frequency scaling driver shows 'acpi-cpufreq' instead of
'intel_pstate', even *before* adding 'intel_pstate=disable' to
/etc/default/grub.
After adding 'intel_pstate=disable' to /etc/def
I confirm, that disabling Intel pstate driver helps to solve
overheating. Read instructions below.
https://brezular.com/2019/02/05/ubuntu-18-04-overheating/
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ht
According to this link, disabling Intel pstate governor brings the
temperature down back to 16.04 levels:
https://askubuntu.com/questions/1063363/laptop-cpugpu-overheating-after-
update-to-18-04-lts/1064534#1064534
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I'll leave my hardware specs here, it could help pinning down the problem cause.
I'm using NVidia driver 340.107.
The overheating occurs under kernel 4.15, both in 16.04 and 18.04, *but*
18.04 runs about 8°C - 10°C hotter.
Kernel 4.18 runs just as hot in 18.04.
** Attachment added: "lshw-ThinkPa
Same problem here:
Lenovo ThinkPad T410s
Intel i5 (1st gen, 2.53Ghz)
NVidia NVS3100M graphics
Kernel 4.4 in 16.04 idles at 35°C - 37°C (fresh, high-quality thermal
paste applied a week ago).
Kernel 4.15 in 18.04 idles at 48°C - 52°C.
Only Dropbox and Megasync in the background; htop shows very
Same symptoms here and no nvidia GPU, only "simple" Intel.
Since this version, temp is very high. Between 70 and 80 by default, and
up to 90 and more with a youtube video and even more with a 3D game like
Minetest… and then it shutdowns (like max 5-10min on Minetest).
It was clearly not the case
Ubuntu offered me a security update. It was offering it for a long time
and I didn't want to take it, because I didn't wanted to mess it up. But
installed all, and it messed it up with kernel 4.15: it couldn't install
the 340 nvidia driver I need into the new kernel. It became an endless
loop when
Left out: the kernel which is working now is the same, that had the
overheat with nouveau: 4.15
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Title:
Ubuntu 18.04 i
If we can confirm thermald is not the culprit, we can do a kernel
bisection to find the regression commit.
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/sc
So, is it working workaround to downgrade to 4.4 kernel?
Can someone else confirm it please?
Cause I can't wait to upgrade my 16.04... again
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The issue persists in version 18.10
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To manage notificati
Has the same issue with Linux Mint 19.1, I read that it is based on
Ubuntu 18.04
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Title:
Ubuntu 18.04 is overheating a
It is possible to try thermald package in Xenial?
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To man
Aaand it's back again. Overheating. No real load. Hot as it can get.
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Title:
Ubuntu 18.04 is overheating after upgrade
And another observation. After booting the old kernel several times..
the 4.15 kernel starts without problems also, currently it works without
the heat and performance problems. I did not change anything. I have no
idea what happened there. Weird.
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Well, the new 4.15 kernel has that problem. I still have a 4.4 kernel as
alternative, which does not have that problem. Something in between has
gone bad. This does not really narrow it down enough to know the cause,
but it's not the drivers or the hardware or other software alone.
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I want to add one more info, since most people might focus on the gpu or
drivers. The gpu temp might only indirectly show cpu temps for my
thinkpad, since they both are connected to the same heatpipe. Hot cpu =>
warm gpu. Does not mean gpu is in use.
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I want to add an observation. I upgraded from 16.04 to 18.04 and the
first boot already was sluggish and the mouse pointer is slow. First I
suspected a baloo_file process to be the cause. It's not. I noticed the
fans of my thinkpad spin up. I saw no load on the cpu (as normal user).
Also the disk i
I have the same problem (not over heating but xorg now constant
spinning). Prior to upgrade from 16.04 to 18.04 never had this issue. At
first I thought it might be related to application but even when nothing
is running the x server just spins.
A small detail - I actually have a 2500K but there w
Same for me: Ubuntu 18.04 LTS fresh install on Surface Book 2017
Constant high CPU usage (> 90%) on kworker/0:1 and sometimes results to
overheating and screen goes blank for seconds.
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The possible source of the problem and the solution:
https://discourse.ubuntu.com/t/call-for-testing-nvidia-prime-in-
ubuntu-18-04-and-18-10/8207
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I have the same issue, migrated with fresh install from windows 10 (with
no overheat problem)
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Title:
Ubuntu 18.04 is
Same for me: ubuntu 18.04 just installed on Dell Precision M3800.
Before I was on 16.04 and CPU temp during normal session was about 47-55
deg.
Now, it's constantly at 63-80 deg.
I tried lots of tweaks (install thermald, tlp, cpufreq-selector, etc).
Nothing worked until now. I'm seriously consid
UPDATE:
I wanted to try out installing 18.04.1
After having the live mode started and opening the menu my laptop shutted down
suddenly and it is hot now.
Also it somehow messing up the fan. I have to restart from Windows to have it
sound and work fine.
Windows is running like charm, no overheats.
Same problem for me.
Upgrade to 18.04.1 from 16.04.x.
Dell Precision M3800
Nvidia drivers 340 and 390 (both tested).
But I'm always on the Intel Graphics.
Temp regularly above 70°C. Never had this problem before.
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The same problem. Clean install. Asus S46CM.
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To manage n
I had the same issue with clean install of Ubuntu 18.04.
16.04 was working fine with my laptop.
Laptop: Dell Studio XPS 1340, Processor: Intel Core 2 Duo P8600, VC: GeForce
9400MGE
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same problem here. Laptop is overheating.
HP Pavilion Power Laptop 15-cb0xx
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Title:
Ubuntu 18.04 is overheating afte
Having the same issue on Precision 5520. Started happening after
upgrade form 16.04 to 18.04 as well. I don't have Synaptic drivers
installed, using libinput.
Running the same kernel as for 16.04, 4.16.18-041618-generic installed
from http://kernel.ubuntu.com/~kernel-ppa/mainline/
What kind of
Would it be possible for you to do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ g
Hi,
I am tested latest kernel version, 4.17 and the same of 16.04, 4.4.0 and
the result is same problem.
Now I think might be some module as nvidia or some kernel setting what is
overclocking even with thermald and tlp.
Em seg, 4 de jun de 2018 às 10:01, Joseph Salisbury <
joseph.salisb...@canoni
The same problem here.
Upgrage from 16 to 18
Dell XPS
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To
I having the same problem. Laptop Asus N551JX. Intel® Core™ i7-4720HQ CPU @
2.60GHz × 8
Fresh install, tried with and without nvidia drivers, tried to stop thermald,
didn't help.
/var/log/kern.log keeps reporting of critical cpu package temp or something
before shootdown...
That feeling like cr
Same problem: Lenovo Z50, Radeon R6 R7 graphics, AMD FX 7500 CPU. The
bug is definitely corresponds to the new Ubuntu version because the
previously 16.04 version worked almost smoothly. (I changed it because
of very slow boot process - it is a bit faster in 18.04).
Nect to the overheating the sys
Same here, fresh installation of Ubuntu, Samsung npv300.
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
Same issue started post 18.04 upgrade. AMD FX at 4.7 GHz goes into
thermal shutdown about a minute after getting booted up and into the
desktop. I installed cpuefreqd and set the policy to power save high
(limiting the frequency scaling to about 50%) in order to keep the CPU
temp below the ther
Facing the same problem here... Dell inspiron 7000.
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To m
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.17 kernel[
apport information
** Tags added: apport-collected ubuntu
** Description changed:
Ubuntu is overheating at my laptop. Opening youtube on firefox is enough
for critical temperature shutdown.
Using lm-sensors for monitoring on 18.04 the temp varies between 70 and 85°C
with only firefox o
I had a similar problem. turns out it was actual high load that forced
the cpu clock speed to always be more than 3GHz on all (!) cores. namely
the xorg (>100%), systemd-journald (>50%) and rsyslogd(>30%) were
consuming a lot cpu power. in the journal i could see the following line
over and over ag
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-nouveau (Ubuntu)
Status: New => Confirmed
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https:
samwe problem here. I have a lenovo e570
cpu Intel® Core™ i5-7200U CPU @ 2.50GHz × 4
graphics GeForce GTX 950M/PCIe/SSE2
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** Package changed: ubuntu-release-upgrader (Ubuntu) => linux (Ubuntu)
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Title:
Ubuntu 18.04 is overheating after upgra
I have the same heating issue after a clean install of Ubuntu 18.04.
Before that I was using Ubuntu 16.04, without this problem.
Fans are more active than before and the laptop is constantly
overheated, with 70-80 degrees doing nothing but only Chrome or even
with the shell opened.
Nvidia drivers
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