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Date:      Mon, 26 Sep 2022 16:47:29 -0300
From:      Mario Lobo <lobo@bsd.com.br>
To:        Saniya Maheshwari <saniya.mah@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Heating issues with FreeBSD on laptop
Message-ID:  <CA%2ByoEx9oNKJ0anKPFN-cqWkAu0asJJiobLDBftaO9hrMzOoWpw@mail.gmail.com>
In-Reply-To: <5YSTIR.Y5KGLFASW5IU2@gmail.com>
References:  <5YSTIR.Y5KGLFASW5IU2@gmail.com>

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On Mon, Sep 26, 2022 at 1:40 PM Saniya Maheshwari <saniya.mah@gmail.com>
wrote:

> 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
>

Hi Saniya.

Have you tried inserting

powerd_enable="YES"
powerd_flags="-a adaptive -b adaptive -n adaptive"

in /etc/rc.conf? and issue:

service powerd start

-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!]

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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><div dir=3D"ltr"></div>On Mon, Sep 26, 2022 at 1:40 PM San=
iya Maheshwari &lt;<a href=3D"mailto:saniya.mah@gmail.com">saniya.mah@gmail=
.com</a>&gt; wrote:<br><div class=3D"gmail_quote"><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex"><div id=3D"m_-996564436095393930geary-body" dir=3D=
"auto"><div>Hi,</div><div><br></div><div>I just installed FreeBSD on my lap=
top, 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&#39;s idle.</div=
><div><br></div><div>Following some steps on other forums, I tried the foll=
owing:</div><div><br></div><div>$ sysctl &#39;hw.acpi.thermal&#39;</div><di=
v><br></div><div>This gives me an &#39;unknown oid&#39; error.</div><div><b=
r></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></div><div>#=
 kldload coretemp</div><div><br></div><div>and retrying:</div><div><br></di=
v><div>$ sysctl -a | grep temperature</div><div><br></div><div>I do get the=
 CPU temperature values:</div><div><br></div><div>dev.cpu.15.temperature: 5=
1.0C</div><div>dev.cpu.13.temperature: 50.0C</div><div>dev.cpu.11.temperatu=
re: 50.0C</div><div>...</div><div><br></div><div>All this is when the lapto=
p 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&#39;m not sure what is going w=
rong and would be grateful for any help.</div><div><br></div><div>Thanks!</=
div><div>Saniya</div></div></blockquote></div><div><br></div><div>Hi Saniya=
.</div><div><br></div><div>Have you tried inserting</div><div><br></div><di=
v>powerd_enable=3D&quot;YES&quot;<br>powerd_flags=3D&quot;-a adaptive -b ad=
aptive -n adaptive&quot;</div><div><br></div><div>in /etc/rc.conf? and issu=
e:</div><div><br></div><div>service powerd start<br></div><br>-- <br><div d=
ir=3D"ltr" class=3D"gmail_signature"><div dir=3D"ltr"><div>Mario Lobo<br><a=
 href=3D"http://www.mallavoodoo.com.br" target=3D"_blank">http://www.mallav=
oodoo.com.br</a><br>FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!]</=
div></div></div></div>

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