CPU Fan not working on Debian/Linux

Question

I'm on Inspiron 15 3567 with dual boot (win10,Debian), normally my CPU temperature while I'm using Debian is around 30-38 degrees, but recently I installed a heavy program on Debian and I noticed that the CPU temperature reached around 53 degrees and I couldn't hear any noise from the fan, so I checked the fan speed using a tool and the speed on 53 degrees was zero rpm.

I tried to control the fan manually on Debian using a tool called fancontrol but that didn't work, the tool detected the fan but couldn't turn it on, I switched to windows 10 and downloaded some software called speedfan, but also this software wasn't able to control the fan at all.

I did some research and alot of people mentioned that it's possible to turn on the fan from the BIOS menu, so I opened the BIOS menu and I searched under all categories, but couldn't find any setting related to fan/temperature.

Like I mentioned earlier, most of the time the CPU temperature stays around 30 - 38 when I'm not donig any heavy work, but it's still a problem and needs a solution..

what should I do? Do you have any thoughts about this?

Mathbekunkus · Answer

I ran into the same problem on a Latitude 7480. I had to add a kernel parameter to GRUB; the relevant line in /etc/default/grub reads

GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=!Windows 2020"

Apparently, this parameter tells the kernel to treat ACPI events as if they were running on Windows. I hope this helps you!

AdrianG001 · Answer

3   Try installing the latest microcode for your processor. According to some linux gurus you may be able to improve the functioning of the central processor (CPU) in your computer by applying the latest Intel or AMD microcode. This will improve the functioning of your CPU, because it corrects bugs in the default microcode that it receives from the motherboard.

dantheman192 · Answer

Hi, I'm a total beginner at Linux, I'm running PopOS. I've got the same issue in this thread. Do I just put this into the terminal because it isn't working for me. Thanks in advance.

bwlinux · Answer

@Mathbekunkus​ You dont understand what you are doing, dont you? =! says 'is not equal'

bwlinux · Answer

@dantheman192​ No, you have to edit the grub file as root or with sudo rights because you are a beginner, i would recommend you to use nano as a terminal text editior. due to that, type this in the terminal: sudo nano /etc/default/grub add this part into the line acpi_osi=!Windows 2020then controll + o and controll + xafter that, you have to update your grub boot loader.that you can do with this:sudo update-grubafter that, reboot

Inspiron

CPU Fan not working on Debian/Linux

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