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I recently installed ubuntu 19.04 on my laptop (Dell G7 7590). I have faced severe overheating issues. My laptop hits around 71 degrees centigrade even on idle. I've tried installing TLP, powertop, laptop-mode, slimbook and nothing seems to have helped so far. I believe the problem is in the CPU running at max freq at all times, but I don't know how to resolve this.

I tried:

echo '1' > /sys/devices/system/cpu/intel_pstate/no_turbo

and there has been no change.

I am fairly new to both Linux and the forum so any help will be much appreciated.

UPDATE

When I try to detect the sensors by running:

sudo sensors-detect

It gets stuck at:

Probing for `National Semiconductor LM80'...

Also:

sensors| grep fan

Gives no output

How do I resolve this?

UPDATE

It appears that my CPU has minimal usage and the laptop still heats up

enter image description here

It clocks at 1.8 to 2.2 GHz, with max freq at 4.1 GHZ, yet I cant seem to find the source for it heating up.

UPDATE

I reinstalled Ubuntu 19.04 and the nvidia drivers, TLP, CPUfreq, which seems to have resolved the problem. Thanks @WinEunuuchs2Unix and @Doug Smythies for your help.

sriram vijendran
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    Related: https://askubuntu.com/questions/391474/stop-cpu-from-overheating – WinEunuuchs2Unix Jun 14 '19 at 12:22
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    Related 2: https://askubuntu.com/questions/1102311/cpu-frequency-too-high-even-with-powersave-governor – WinEunuuchs2Unix Jun 14 '19 at 12:26
  • Your processor would default to using HWP (Hardware P-State) control via the intel_pstate CPU frequency scaling driver. As a test, try disabling HWP, via /etc/default/grub, with intel_pstate=no_hwp added to whatever is already on the GRUB_CMDLINE_LINUX_DEFAULT= line. Remember to sudo update-grub after, and keep a copy of the original first. Also, turbostat (linux-tools-common package) is the best tool for this investigation. Start with sudo turbostat --Summary --quiet --show Busy%,Bzy_MHz,PkgTmp,PkgWatt,GFXWatt,IRQ --interval 5 and modify as needed as you drill down into it. – Doug Smythies Jun 14 '19 at 14:48
  • My laptop used to have Windows, and the fans worked normally there, but they are too slow in Ubuntu. They spin at bare minimum speed. How do I rectify that? @WinEunuuchs2Unix – sriram vijendran Jun 14 '19 at 15:58
  • My fans work normally in Linux and Windows 10. I didn't do anything special other than installing tlp and thermald with default settings. – WinEunuuchs2Unix Jun 14 '19 at 17:18

0 Answers0