The game "openAstroMenace", for some reason defaults=
to using VBO Core in the
absence of VAO core, which predictably causes the game to crash on a modern
OpenGL implementation. The game itself crashing is not a problem; it's the =
PSU
switching off that's very concerning.
I'm running an ASRock E3V5 WS motherboard with a 4 GB Sapphire R9 Fury X, a=
nd
an E3-1235L CPU.
I'm early on in diagnosing it so I don't have a stack trace, but I think I'=
ve
ruled out hardware problems, as this system doesn't break a sweat maxing out
the Heaven benchmark or the Phoronix JuliaGPU (via ROCm) benchmark, and pla=
ys
every other game flawlessly. It can run with all CPU cores at 100% for hour=
s on
end. openAstroMenace runs flawlessly with max settings when VAO Core is
enabled.
Mesa may be malfunctioning here, but a userspace library wouldn't affect PSU
behavior. This is pointing me in the direction of suspecting AMDGPU to be t=
he
culprit. It exhibits this behavior on both my Ubuntu and Gentoo installatio=
ns,
and on 4.15 and 4.18 series kernels. The system poweroff is predictable dow=
n to
less than half a second, and is triggered exactly the same way at exactly t=
he
same time in every instance. It occurs around 3/4 of a second after the gam=
e's
menu appears.