Ubuntu: HP dv7 - fan always on after upgrade to 17.10


After the upgrade to 17.10, the fan spins up during boot and never spins down - even though the CPU usage is low and sensors report the system isn't running very hot:

coretemp-isa-0000  Adapter: ISA adapter  Package id 0:  +58.0°C  (high = +87.0°C, crit = +105.0°C)  Core 0:        +57.0°C  (high = +87.0°C, crit = +105.0°C)  Core 1:        +54.0°C  (high = +87.0°C, crit = +105.0°C)  Core 2:        +58.0°C  (high = +87.0°C, crit = +105.0°C)  Core 3:        +56.0°C  (high = +87.0°C, crit = +105.0°C)    acpitz-virtual-0  Adapter: Virtual device  temp1:        +58.0°C    temp2:        +58.0°C  (crit = +120.0°C)  temp3:        +30.0°C  (crit = +120.0°C)    nouveau-pci-0100  Adapter: PCI adapter  GPU core:     +0.85 V  (min =  +0.82 V, max =  +1.12 V)  temp1:        +77.0°C  (high = +95.0°C, hyst =  +3.0°C)                         (crit = +105.0°C, hyst =  +5.0°C)                         (emerg = +135.0°C, hyst =  +5.0°C)    avn@mistral:~$ uptime   18:41:31 up 12 min,  1 user,  load average: 0.62, 0.39, 0.23  

Any idea what else could be making the fans run constantly?

Edit: I seem to have found a workaround while trying to fix another issue after the upgrade: the system hangs at shutdown so the suggestion here was to remove "quiet splash" from kernel's command line.

Somehow this helped with the fans, too. I confirmed that putting these options back results in heavy fan duty again, and removing again makes the laptop quiet.

I would love to hear an explanation for this behavior. Seems like something is wrong with Plymouth?


Looks like you are missing fan-control drivers here is a fix that worked for me

sudo apt-get install dkms  sudo apt-get install lm-sensors  sudo apt-get install fancontrol  sudo reboot  

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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