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[Solved] How to get fan sensors working? (reddthat.com)

submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

10 comments fedilink hide all child comments

I recently wiped Windows in favor of CachyOS, and it's been lovely! However, I have one outstanding issue that I can't seem to figure out.

To start, I have a Gigabyte B550I Aorus Pro AX motherboard. I followed the guide on the Arch Wiki for my particular chipset.

I still can't seem to control my cooling fans.

I have lm_sensors installed
I installed CoolerControl
I used modprobe it87 force_id=0x8628
I tried adding the .conf files to /etc/modprobe.d/ and /etc/modules-load.d/
When the steps above didn't work, I installed the it87-dkms-git package

No matter what I've tried, the only time the fan sensors get detected is when I also specify acpi_enforce_resources=lax in GRUB. From what I barely understand, that's not an option you want to leave on permanently, but perhaps y'all know better or have other ideas.

If it helps:

Motherboard: Gigabyte B550I Aorus Pro AX
Latest CachyOS kernel
Boot: GRUB

Edit: I have a semi-solution.

sudo modprobe it87 force_id=0x8688 ignore_resource_conflict=1

...allows the module to load without completely changing the acpi policy. I still don't know how to make it cleanly permanent or automated, but this is significant progress.

Also note that it should have been 0x8688 in my case, as revealed by sensors-detect.

Edit 2: Added

/etc/modules-load.d/it87.conf
it87

And

/etc/modprobe.d/it87.conf
options it87 force_id=0x8688 ignore_resource_conflict=1

And everything loads automatically! Thanks everyone!

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[–] [email protected] 1 points 1 week ago (1 children)

Unfortunately, this didn't fix it, either before or after. sensors-detect can see the ITE chipset, but it says

Trying family 'ITE'...
Found unknown chip with ID 0x8688

After which it doesn't find any modules to load for it, despite having a DKMS module installed that includes that chip.

(Also, I realize that I was using the incorrect ID before, but it seemed to work anyway.)

[–] [email protected] 3 points 1 week ago* (last edited 1 week ago) (1 children)

is this your issue? https://github.com/lm-sensors/lm-sensors/issues/154

make sure the version you are using includes it too.

[–] [email protected] 2 points 1 week ago

Thanks, sounds very similar to what's going on with those users. I'll look into that thread a little more