Arch Linux

TheCrafter

Member

Registered: 2015-10-09

Posts: 18

Laptop's fans are always running on full speed

I just installed arch linux on my laptop and I noticed that my fans are full speed all the time so I tried to fix that.

I followed the wiki guide but I am stuck because everytime I run

sensors

I get this output:

acpitz-virtual-0
Adapter: Virtual device
temp1:          +45.0C  (crit = +99.0C)

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +46.0C  (high = +86.0C, crit = +100.0C)
Core 0:         +43.0C  (high = +86.0C, crit = +100.0C)
Core 1:         +43.0C  (high = +86.0C, crit = +100.0C)
Core 2:         +45.0C  (high = +86.0C, crit = +100.0C)
Core 3:         +46.0C  (high = +86.0C, crit = +100.0C)

I don't see any output for fans.

I tried adding

acpi_enforce_resources=lax

to grub as described here but nothing.

Also, I tried running:

sudo modprobe w83627ehf force_id=0x8860

but then,

pwmconfig

doesn't work properly.

What should I do?

byte

Member

From: Düsseldorf (DE)

Registered: 2006-05-01

Posts: 2,046

Re: Laptop's fans are always running on full speed

Many laptop sensors are not exposed via ACPI or I2C sensors and either rely on some BIOS/ACPI magic or on special kernel modules.
What model is it?

---

1000

amish

Member

Registered: 2014-05-10

Posts: 513

Re: Laptop's fans are always running on full speed

You possibly have HP laptop

See this:
https://bbs.archlinux.org/viewtopic.php?id=192255

Its already a known bug. And FIX is awaited.

TheCrafter

Member

Registered: 2015-10-09

Posts: 18

Re: Laptop's fans are always running on full speed

Many laptop sensors are not exposed via ACPI or I2C sensors and either rely on some BIOS/ACPI magic or on special kernel modules.
What model is it?

The model is: A15HC

You possibly have HP laptop

See this:
https://bbs.archlinux.org/viewtopic.php?id=192255

Its already a known bug. And FIX is awaited.

Thanks for giving me that link. I will definitely look into that.

EDIT:
That bug you posted is for kernel 3.18.2-2. Mine is:  4.2.2-1

Last edited by TheCrafter (2015-10-09 14:21:47)

amish

Member

Registered: 2014-05-10

Posts: 513

Re: Laptop's fans are always running on full speed

Bug is existing since 3.18.1 and still exists.

So obviously it will be in 4.2.2 too.

Can you confirm which laptop do u have?

TheCrafter

Member

Registered: 2015-10-09

Posts: 18

Re: Laptop's fans are always running on full speed

Bug is existing since 3.18.1 and still exists.

So obviously it will be in 4.2.2 too.

Can you confirm which laptop do u have?

My laptop's model is A15HC. I bought it from a greek company named TurboX but the original manufacturer of laptop is a Chinese (I think) company called Clevo. So I am pretty sure my laptop can be described as: Clevo Laptop A15HC.

Note: Motherboard's manufacturer is a company called Pegatron Corporation.