Just took a look on the Acer website also. The new BIOS is almost double
in size, maybe they actually added the correct acpi tables this time
around. The same exact MB is used in some HP and Lenovo laptops and
their issues subsided with recent BIOS updates, let's hope the same for
us. As for my long-term test (since an earlier post), was running Debian
stretch with the 4.18 kernel, updated amdgpu, libdrm, and had the ioacpi
workarounds added to grub. It was quite stable, with some complaints if
the screen blanked. It, however, was not 100%. Do not try 4.19 or 012019
amdgpu firmware with Debian, it was a complete fail. However, fedora
with 4.19 works, but haven't tested it long-term.

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  Acer Aspire A315 IOAPIC failure on Ubuntu 18.04, kernel hangs, can't
  load, kernel freeze  (AMD Ryzen 5/Radeon/Raven) / AMDGPU Hybrid crash

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