[arch-general] Laptop cooling fan does not work

[Jürgen Werner]

Am 25.08.2016 um 05:30 schrieb Peter Nabbefeld:
> Am 23.08.2016 um 21:10 schrieb Jayesh Badwaik:
>>> There seems to be sth. wrong with my Nvidia settings, nvidia-settings
>>> shows an error that X is incorrectly configured and my vidieo card
>>> seems not to be used - probably this causes the problems. Maybe this
>>> is caused by some update or sth. else. I'll check that next weekend.
>>
>> Okay, first you must install lm_sensors package and run
>> $ sensors
>>
> I already had installed it. After even running sensors-detect again, I
> got this output (after replacing the nvidia driver by the nouveau one):
>
> acpitz-virtual-0
> Adapter: Virtual device
> temp1:        +52.0°C  (crit = +120.0°C)
>
> nouveau-pci-0100
> Adapter: PCI adapter
> GPU core:     +0.60 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)
> power1:           N/A
>
> coretemp-isa-0000
> Adapter: ISA adapter
> Physical id 0:  +53.0°C  (high = +84.0°C, crit = +100.0°C)
> Core 0:         +53.0°C  (high = +84.0°C, crit = +100.0°C)
> Core 1:         +48.0°C  (high = +84.0°C, crit = +100.0°C)
> Core 2:         +51.0°C  (high = +84.0°C, crit = +100.0°C)
> Core 3:         +49.0°C  (high = +84.0°C, crit = +100.0°C)
>
> As my grafics card is of type NVE4/GK104M, I'd expect temperature data
> to be available - but it obviously isn't (fan control should be
> available ...). Probably I've misunderstodd sth.?
>
>> command. This will tell you about your fan speed for the processor.
>> Next, if the CPU processor is running, determine which driver are you
>> using. For this, you need to do lsmod, which lists all the modules
>> listed (this should contain your video driver module)
>>
>> $ lsmod | grep -i nvidia
>>
>> $ lsmod | grep -i nouveau
>>
>
> nouveau              1478656  1
> ttm                    77824  1 nouveau
> mxm_wmi                16384  1 nouveau
> wmi                    16384  2 mxm_wmi,nouveau
> video                  36864  2 i915,nouveau
> button                 16384  2 i915,nouveau
> i2c_algo_bit           16384  2 i915,nouveau
> drm_kms_helper        118784  2 i915,nouveau
> drm                   294912  8 ttm,i915,drm_kms_helper,nouveau
>
>
>> At least one the above should return something. nouveau is the open
>> source driver.
>>
>>

I must agree with Sean. You are probably focusing to much on the
graphics driver. Most Laptop have only one fan nowadays to cool both,
processor and graphics card. When either one gets to hot, the fan should
react.
Please follow Seans advise to downgrade the kernel or better the whole
system to the state it was before your the upgrade, which broke the fan
functionality. First step should be ruling out hardware failures. Once
you know for certain, that it is indeed a software problem you can start
searching for the particular software. For example, by upgrading package
by package (only for critical packages of course).