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Date:      Tue, 27 Sep 2022 09:07:29 +0300
From:      Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com>
To:        Ian Smith <smithi@nimnet.asn.au>
Cc:        Saniya Maheshwari <saniya.mah@gmail.com>, freebsd-questions@freebsd.org
Subject:   Re: Heating issues with FreeBSD on laptop
Message-ID:  <CAOgwaMvqT6gq0ax8T7dPEyEeJxRc6y49W0_wbwXGjrMH0O0wfg@mail.gmail.com>
In-Reply-To: <D16526F8-C514-496A-9962-8F04C9D217BE@nimnet.asn.au>
References:  <5YSTIR.Y5KGLFASW5IU2@gmail.com> <D16526F8-C514-496A-9962-8F04C9D217BE@nimnet.asn.au>

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On Tue, Sep 27, 2022 at 8:09 AM Ian Smith <smithi@nimnet.asn.au> wrote:

> On 27 September 2022 2:39:41 am AEST, 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.
>
> What make and model laptop?
>
> What version of FreeBSD?
>
>  > 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.
>
> Please show results of
>
> $ sysctl hw.acpi
>
> If none, acpi.ko isn't loaded.
>
> Otherwise select Verbose Booting from the startup menu, and scan results
> in /var/run/dmesg.boot to look for errors while booting.
>
> You may need to put that file up on some site, and post a link to it here.
>
>  > 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.
>
> How about:
>
> $ sysctl -a | grep fan
>
> cheers, Ian
>
>
>


Many years ago I encountered such a case in DragonflyBSD :
Frequently messages were displayed about high temperatures with increased
fan revolutions .

Later , I installed Linux .
The high temperature messages with accompanying fan revolution increases
continued .
In the end , the CPU completely failed .

This means , a CPU during progressive failure may show such high
temperature increases .


With my best wishes .


Mehmet Erol Sanliturk

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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:tahoma,sans-serif;font-size:large"><br></div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Sep 27, 2022=
 at 8:09 AM Ian Smith &lt;<a href=3D"mailto:smithi@nimnet.asn.au">smithi@ni=
mnet.asn.au</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">On 27 September 2022 2:39:41 am AEST, Saniya Maheshwari &lt;<a h=
ref=3D"mailto:saniya.mah@gmail.com" target=3D"_blank">saniya.mah@gmail.com<=
/a>&gt; wrote:<br>
=C2=A0&gt; Hi,<br>
=C2=A0&gt; <br>
=C2=A0&gt; I just installed FreeBSD on my laptop, and everything went smoot=
hly, <br>
=C2=A0&gt; except one thing that my laptop seems to be a little warm and no=
isy <br>
=C2=A0&gt; (due to the fans) even when it&#39;s idle.<br>
<br>
What make and model laptop?<br>
<br>
What version of FreeBSD?<br>
<br>
=C2=A0&gt; Following some steps on other forums, I tried the following:<br>
=C2=A0&gt; <br>
=C2=A0&gt; $ sysctl &#39;hw.acpi.thermal&#39;<br>
=C2=A0&gt; <br>
=C2=A0&gt; This gives me an &#39;unknown oid&#39; error.<br>
=C2=A0&gt; <br>
=C2=A0&gt; $ sysctl -a | grep temp<br>
=C2=A0&gt; <br>
=C2=A0&gt; This gives no results.<br>
<br>
Please show results of<br>
<br>
$ sysctl hw.acpi<br>
<br>
If none, acpi.ko isn&#39;t loaded.<br>
<br>
Otherwise select Verbose Booting from the startup menu, and scan results in=
 /var/run/dmesg.boot to look for errors while booting.<br>
<br>
You may need to put that file up on some site, and post a link to it here.<=
br>
<br>
=C2=A0&gt; After running<br>
=C2=A0&gt; <br>
=C2=A0&gt; # kldload coretemp<br>
=C2=A0&gt; <br>
=C2=A0&gt; and retrying:<br>
=C2=A0&gt; <br>
=C2=A0&gt; $ sysctl -a | grep temperature<br>
=C2=A0&gt; <br>
=C2=A0&gt; I do get the CPU temperature values:<br>
=C2=A0&gt; <br>
=C2=A0&gt; dev.cpu.15.temperature: 51.0C<br>
=C2=A0&gt; dev.cpu.13.temperature: 50.0C<br>
=C2=A0&gt; dev.cpu.11.temperature: 50.0C<br>
=C2=A0&gt; ...<br>
=C2=A0&gt; <br>
=C2=A0&gt; All this is when the laptop is absolutely idle with just the she=
ll <br>
=C2=A0&gt; running in the TTY. I can confirm that<br>
=C2=A0&gt; <br>
=C2=A0&gt; # top<br>
=C2=A0&gt; <br>
=C2=A0&gt; shows the same (CPU 100% idle).<br>
=C2=A0&gt; <br>
=C2=A0&gt; I&#39;m not sure what is going wrong and would be grateful for a=
ny help.<br>
<br>
How about:<br>
<br>
$ sysctl -a | grep fan<br>
<br>
cheers, Ian<br>
<br>
<br></blockquote><div><br></div><div><br></div><div><br></div><div><div sty=
le=3D"font-family:tahoma,sans-serif;font-size:large" class=3D"gmail_default=
">Many years ago I encountered such a case in DragonflyBSD :</div><div styl=
e=3D"font-family:tahoma,sans-serif;font-size:large" class=3D"gmail_default"=
>Frequently messages were displayed about high temperatures with increased =
fan revolutions .<br></div><div style=3D"font-family:tahoma,sans-serif;font=
-size:large" class=3D"gmail_default"><br></div><div style=3D"font-family:ta=
homa,sans-serif;font-size:large" class=3D"gmail_default">Later , I installe=
d Linux .</div><div style=3D"font-family:tahoma,sans-serif;font-size:large"=
 class=3D"gmail_default">The high temperature messages with accompanying fa=
n revolution increases continued .</div><div style=3D"font-family:tahoma,sa=
ns-serif;font-size:large" class=3D"gmail_default">In the end , the CPU comp=
letely failed .</div><div style=3D"font-family:tahoma,sans-serif;font-size:=
large" class=3D"gmail_default"><br></div><div style=3D"font-family:tahoma,s=
ans-serif;font-size:large" class=3D"gmail_default">This means , a CPU durin=
g progressive failure may show such high temperature increases .</div><div =
style=3D"font-family:tahoma,sans-serif;font-size:large" class=3D"gmail_defa=
ult"><br></div><div style=3D"font-family:tahoma,sans-serif;font-size:large"=
 class=3D"gmail_default"><br></div><div style=3D"font-family:tahoma,sans-se=
rif;font-size:large" class=3D"gmail_default">With my best wishes .<br></div=
><div style=3D"font-family:tahoma,sans-serif;font-size:large" class=3D"gmai=
l_default"><br></div><div style=3D"font-family:tahoma,sans-serif;font-size:=
large" class=3D"gmail_default"><br></div><div style=3D"font-family:tahoma,s=
ans-serif;font-size:large" class=3D"gmail_default">Mehmet Erol Sanliturk <b=
r></div><div style=3D"font-family:tahoma,sans-serif;font-size:large" class=
=3D"gmail_default"></div><br></div><div><br></div><div><br></div><div>=C2=
=A0</div></div></div>

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