<div dir="ltr"><div>This takes me back ~15 years.</div><div>We had Sun x86_64 servers, which randomly decided to shutdown. After investigation it appeared that the problem was that the computer wrongly decided it's too hot and sent ACPI command to shutdown.</div><div>Long story short - firmware update solved it.</div><div><br></div><div>Bottom line, have you tried the latest firmware for your XPS15?<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 12, 2021 at 12:18 PM Shachar Shemesh <<a href="mailto:shachar@shemesh.biz">shachar@shemesh.biz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>Allow me, if I may, to set up the stage for you.</p>
<p>I don't know the precise scenario that causes this to happen, but
one thing that triggers it reliably is starting up X-Plane 11 and
taking off. A few second and up to a minute into the flight, my
KDE "shutting down" screen comes up. If I cancel the shutdown, the
screen comes up one more time on its own, and then the computer
just shuts down.</p>
<p>Now, I know what you're all thinking. So I ran X-Plane while
monitoring the CPU's and GPU's temperatures. Sure enough, they get
hot. I opened up the laptop (Dell XPS 15, a gamer's laptop),
cleaned the fans, and ran the game again. Temperatures were much
more reasonable. But the shutdown screen popped up again.</p>
<p>I ran it with dmesg running. While there are some temperature
throttling messages, not a lot, and none that claim I *have* to
shut down.</p>
<p>I am looking for a way to debug this. Obviously, something in the
hardware gives the command to shut down the computer. I have,
however, not been able to find out what and why.</p>
<p>Does anyone have any idea which system might be issuing this
command, and where it might be writing its logs?</p>
<p>Shachar<br>
</p>
</div>
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