No detected fans on Fedora 26 - Acer Aspire V17

asked 2017-07-11 16:30:44 -0500

jpichardo gravatar image

Hello, I have an Acer Aspire V17 and my cpu is reaching extremely high temps, sometimes near 90 deg (tlp-stat), I've been looking for solutions but my fan doesn't even appear on tlp, lm_sensors, and there is no any fan indications on hwmon, the sensors output is:

Adapter: Virtual device
temp1:        +56.0°C

Adapter: Virtual device
temp1:        +42.0°C  (crit = +100.0°C)
temp2:        +39.0°C  (crit = +92.0°C)

Adapter: ISA adapter
Package id 0:  +43.0°C  (high = +100.0°C, crit = +100.0°C)
Core 0:        +41.0°C  (high = +100.0°C, crit = +100.0°C)
Core 1:        +43.0°C  (high = +100.0°C, crit = +100.0°C)
Core 2:        +38.0°C  (high = +100.0°C, crit = +100.0°C)
Core 3:        +40.0°C  (high = +100.0°C, crit = +100.0°C)

Adapter: PCI adapter
GPU core:     +0.60 V  (min =  +0.60 V, max =  +1.20 V)
temp1:            N/A  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +105.0°C, hyst =  +5.0°C)
                       (emerg = +135.0°C, hyst =  +5.0°C)

the tlp-stat -t output is

--- TLP 1.0 --------------------------------------------

+++ Temperatures
CPU temp               =    44 [°C]
Fan speed              = (not available)

and running sensors-detect threw the following

# System: Acer Aspire VN7-792G [V1.02] (laptop)
# Kernel: 4.11.8-300.fc26.x86_64 x86_64
# Processor: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (6/94/3)

This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.

Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no): 
Silicon Integrated Systems SIS5595...                       No
VIA VT82C686 Integrated Sensors...                          No
VIA VT8231 Integrated Sensors...                            No
AMD K8 thermal sensors...                                   No
AMD Family 10h thermal sensors...                           No
AMD Family 11h thermal sensors...                           No
AMD Family 12h and 14h thermal sensors...                   No
AMD Family 15h thermal sensors...                           No
AMD Family 16h thermal sensors...                           No
AMD Family 15h power sensors...                             No
AMD Family 16h power sensors...                             No
Intel digital thermal sensor...                             Success!
    (driver `coretemp')
Intel AMB FB-DIMM thermal sensor...                         No
Intel 5500/5520/X58 thermal sensor...                       No
VIA C7 thermal sensor...                                    No
VIA Nano thermal sensor...                                  No

Some Super I/O chips contain embedded sensors. We have to write to
standard I/O ports to probe them. This is usually safe.
Do you want to scan for Super I/O sensors? (YES/no): 
/dev/port: No such file or directory

Some hardware monitoring chips are accessible through the ISA I/O ports.
We have to write to arbitrary I/O ports to probe them. This is usually
safe though. Yes, you do have ISA I/O ports even if you do not have any
ISA slots! Do you want to scan the ISA I/O ports? (YES/no): 
/dev/port: No ...
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Maybe your fan is broken?

florian gravatar imageflorian ( 2017-07-11 21:10:16 -0500 )edit

It turns on eventually, when temperature is extremely high, but that;s usually when it's reaching 100 deg, so my guess is that is no broken

jpichardo gravatar imagejpichardo ( 2017-07-12 01:55:46 -0500 )edit

Make sure you have latest BIOS installed - it controls the fans, independently of installed OS. If fan is plugged in and functional, it should be working, even if linux won't be able to read its current speed.

Your GPU might be overheating entire laptop because of subpar power management of open driver, installing Nvidia proprietary drivers should help with that until Nouveau has better support for your GPU.

Still the fan should kick in between 40 and 50 °C at lower speed, making not much noise. If it doesn't, it might need cleaning or replacing.

ozeszty gravatar imageozeszty ( 2017-07-12 04:54:07 -0500 )edit