[arch-general] Laptop cooling fan does not work

Peter Nabbefeld peter.nabbefeld at gmx.de
Fri Aug 26 14:25:52 UTC 2016

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

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