Dell Inspiron 7559 fans do not shut off once started, even when cool

Asked by Julo Petko on 2017-04-20

I have Ubuntu 17.04 with the latest updates on my Dell Inspiron 7559 with the latest BIOS 1.2.2 and once the fans are started to spin, they are spinning forever even when the CPU temperature is about 30deg. Celsius. It is very annoying since on Windows once the laptop is cooled, fans are turned off and it remains quiet on idle. Also battery lifetime is worse on Linux with the fans on. There is already bug created here
also here

It affects all the users of Inspiron 7559 who are running Linux on their laptops.
This problem exists more than a year without any solution.

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What is the output of:

sudo lshw -C display; lsb_release -a; uname -a


Julo Petko (julo.petko) said : #3

       description: VGA compatible controller
       product: HD Graphics 530
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 06
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:320 memory:dd000000-ddffffff memory:b0000000-bfffffff ioport:f000(size=64) memory:c0000-dffff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.04
Release: 17.04
Codename: zesty
Linux julo-Inspiron-7559 4.10.11-041011-generic #201704180310 SMP Tue Apr 18 07:12:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

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