how to display fan speeds

Question

I'm using Ubuntu 20.04 with an Asus Prime Z370-A MB

lm-sensors does not show fan speeds, and the Asus AI Fan Xpert program only works on Windows.

Is there a program that would run on my machine that would display the CPU PWM fan speed? I don't need to modify the speed, I just want to know what it is at any given moment.

I discovered that I can see fan speeds if I boot with acpi=off, but the problem with that is that I then can't see activity in all 12 threads - gkrellm only displays the 6 cores. What I'd like is to see all the threads and the fan speeds. — user199052, Jul 12 '20 at 08:34
Try it with your grub option set to acpi_enforce_resources=lax — rtaft, Jul 12 '20 at 10:47

rtaft · Accepted Answer · 2022-12-11T20:34:18.433

Try it with your grub option set to acpi_enforce_resources=lax

From the documentation:

acpi_enforce_resources= [ACPI]
        { strict | lax | no }
        Check for resource conflicts between native drivers
        and ACPI OperationRegions (SystemIO and SystemMemory
        only). IO ports and memory declared in ACPI might be
        used by the ACPI subsystem in arbitrary AML code and
        can interfere with legacy drivers.
        strict (default): access to resources claimed by ACPI
        is denied; legacy drivers trying to access reserved
        resources will fail to bind to device using them.
        lax: access to resources claimed by ACPI is allowed;
        legacy drivers trying to access reserved resources
        will bind successfully but a warning message is logged.
        no: ACPI OperationRegions are not marked as reserved,
        no further checks are performed.

Edit /etc/default/grub and insert acpi_enforce_resources=lax into the parameter string of GRUB_CMDLINE_LINUX, IE: GRUB_CMDLINE_LINUX='acpi_enforce_resources=lax'
Run update-grub and reboot.

Could you update this post with info on how to implement it as in where to post this line? I'm having the same problem that I got a CPU fan that is detected under Windows but not by lm-sensors. Thanks! — H3R3T1K, Dec 11 '22 at 16:52
@H3R3T1K Updated. This is usually the solution needed for Nuvoton thermal sensors on many desktops. sensors-detect usually tells you what chip it finds when you run it. Post a new question with the fan if this doesnt help. — rtaft, Dec 11 '22 at 20:34

score 0 · Answer 2 · edited Jul 13 '20 at 21:57

0

You could try Psensor from the Ubuntu software store.

Described here: Psensor - A Graphical Hardware Temperature Monitoring Tool for Linux

edited Jul 13 '20 at 21:57

answered Jun 25 '20 at 16:12

codlord

2,506

1

Thanks, but I tried that. No fan speed showing. Same with gkrellm. – user199052 Jun 27 '20 at 08:35

how to display fan speeds

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