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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>
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