Hi,
On 2021-08-21 7:53 p.m., Emanuel Berg wrote:
> o/
>
> Is there a way to have "smart fans" that only go as fast
> as needed?
>
Fans are already going " as needed" if your system supports it.
> Or, lacking that, is there a way to manually switch them off
> when one isn't using the computer?
>
It's not because you are not using the computer that it means that it
doesn't use power (and produce heat), hence why the fans work even if
your computer are idle.
> I do
>
> $ sudo hibernate -v 0
>
> but that seems to kill the Internet connection as well :(
>
Do you know what hibernate means ?
https://en.wikipedia.org/wiki/Hibernation_(computing)
Hibernation (also known as suspend to disk, or Safe Sleep on Macintosh
computers) in computing is powering down a computer while retaining its
state. When hibernation begins, the computer saves the contents of its
random access memory (RAM) to a hard disk or other non-volatile storage.
So yes it does cut your Internet connection.
> I managed to output the GPU/CPU temperature like this
>
> #! /bin/zsh
> # https://dataswamp.org/~incal/conf/.zsh/misc-hw
> temperature () {
> local gpu=$(sensors -j | jq -a '.["nouveau-pci-0100"].temp1.temp1_input')
> local cpu=$(sensors -j | jq -a '.["k10temp-pci-00c3"].Tdie.temp1_input')
> echo "GPU ${gpu}C"
> echo "cpu ${cpu}C"
> }
> alias temp=temperature
>
> Perhaps one should leave those on?
>
> But I also have, connected to the motherboard
>
> fan front low be quiet! Shadow Wings 2 140 mm
> front high be quiet! Shadow Wings 2 140 mm
> CPU cooling tower be quiet! Pure Wings 2 120 mm (2)
> rear Corsair 120 mm
> projector extra fractal Silent Series R3 140 mm
> <https://dataswamp.org/~incal/ebchw/COMPUTER>
>
> Can I reduce their speeds/turn them off from software?
>
It wouldn't be a good choice to turn off the fans as you'll be causing
your CPU temperature to rise and this could damage it. Even if it would
be possible, something that I have doubt. As there's some self
protection enabled in the management system.
Maybe you are playing in something you don't really master the ins and
out of the consequence of what you may do. And this is proven by the
simple sentence that *hibernation cut Internet*. Unless you have a good
reason to risk frying your CPU then leave it alone.
Or buy a system that doesn't use a fan, like the low power, low thermal
emission CPU used in laptop with only passive cooling (heatsink).
> TIA
>
--
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development
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