[arch-general] Laptop cooling fan does not work

Dragon ryu knight.ryu12 at gmail.com
Fri Aug 26 17:06:00 UTC 2016

As in desktop pc, around 70-80 degree is considered 'not too high'.
But in note pc, it's too high.

2016/08/27 1:13 "Peter Nabbefeld" <peter.nabbefeld at gmx.de>:
> Am 26.08.2016 um 16:25 schrieb Peter Nabbefeld:
>> Am 26.08.2016 um 15:16 schrieb Emily Shepherd via arch-general:
>>> On Fri, Aug 26, 2016 at 01:30:36PM +0200, Peter Nabbefeld wrote:
>>>>>> 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)
>>>>> Am 26.08.2016 um 12:30 schrieb Rodrigo Rivas via arch-general:
>>>>> It doesn't seem that your system is missing the fan, at least the CPU
>>>>> temperature looks just fine.
>>>>> Can you try to load the CPU some more to see if it heats up too much.
>>>>> What I mean is that maybe before the fan was at top speed when it
>>>>> wasn't actually needed, and now it is working better...
>>>> After installing Linux 4.7.2, the situation seems to be better, but
>>>> not as good as before.
>>>> Fan is running and speed is rising, but obviously not to its maximum.
>>>> Before I got Linux 4.7, the fan was really loud, when I used some
>>>> graphics - now the max speed seems to be limited.
>>> As Rodrigo says, I wouldn't expect your fan to be running at full speed
>>> for temperatures like that. With your new setup are you ever reaching
>>> higher temperatures? If not, that seems like a good thing, surely? You
>>> wouldn't want your computer to be regularly overheating through standard
>>> use...
>>> Emily
>> This temperature seems to be "normal" currently. Given environment
>> temperature is above 30 degrees, so I'd guess this not too high for a
>> laptop (as there's not much space in the case).
>> However, using some graphics, temperature arises even above 80 degrees,
>> that's much too high, so I'd expect the fan to rise speed, but the
>> amount is too few, cooling is not really successful.
>> As I'm neither a hardware nor a linux expert, I'd need some support to
>> find out what happens. First, I'd like to get some info about fan speed
>> - "sensors -u" is not sufficient.
>> Kind regards
>> Peter
> Thank You altogether for help!
> As I've been told in some other discussion, it's usual that laptop CPUs
get very hot - so I'll stop to further investigate, for the moment.
> Kind regards
> Peter

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