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Date:      Mon, 26 Sep 2022 22:09:41 +0530
From:      Saniya Maheshwari <saniya.mah@gmail.com>
To:        freebsd-questions@FreeBSD.org
Subject:   Heating issues with FreeBSD on laptop
Message-ID:  <5YSTIR.Y5KGLFASW5IU2@gmail.com>

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Hi,

I just installed FreeBSD on my laptop, and everything went smoothly, 
except one thing that my laptop seems to be a little warm and noisy 
(due to the fans) even when it's idle.

Following some steps on other forums, I tried the following:

$ sysctl 'hw.acpi.thermal'

This gives me an 'unknown oid' error.

$ sysctl -a | grep temp

This gives no results.

After running

# kldload coretemp

and retrying:

$ sysctl -a | grep temperature

I do get the CPU temperature values:

dev.cpu.15.temperature: 51.0C
dev.cpu.13.temperature: 50.0C
dev.cpu.11.temperature: 50.0C
...

All this is when the laptop is absolutely idle with just the shell 
running in the TTY. I can confirm that

# top

shows the same (CPU 100% idle).

I'm not sure what is going wrong and would be grateful for any help.

Thanks!
Saniya


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<div id=3D"geary-body" dir=3D"auto"><div>Hi,</div><div><br></div><div>I jus=
t installed FreeBSD on my laptop, and everything went smoothly, except one =
thing that my laptop seems to be a little warm and noisy (due to the fans) =
even when it's idle.</div><div><br></div><div>Following some steps on other=
 forums, I tried the following:</div><div><br></div><div>$ sysctl 'hw.acpi.=
thermal'</div><div><br></div><div>This gives me an 'unknown oid' error.</di=
v><div><br></div><div>$ sysctl -a | grep temp</div><div><br></div><div>This=
 gives no results.</div><div><br></div><div>After running</div><div><br></d=
iv><div># kldload coretemp</div><div><br></div><div>and retrying:</div><div=
><br></div><div>$ sysctl -a | grep temperature</div><div><br></div><div>I d=
o get the CPU temperature values:</div><div><br></div><div>dev.cpu.15.tempe=
rature: 51.0C</div><div>dev.cpu.13.temperature: 50.0C</div><div>dev.cpu.11.=
temperature: 50.0C</div><div>...</div><div><br></div><div>All this is when =
the laptop is absolutely idle with just the shell running in the TTY. I can=
 confirm that</div><div><br></div><div># top</div><div><br></div><div>shows=
 the same (CPU 100% idle).</div><div><br></div><div>I'm not sure what is go=
ing wrong and would be grateful for any help.</div><div><br></div><div>Than=
ks!</div><div>Saniya</div></div>
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