I was just saying the chips are the same but their bios could be different,
hence that would be
a regression if the bios were identical.
The atombios is mainly for modesetting *and* dpm: you have that horrible
code path which translates atombios dpm tables to smc tables.
Back to our pb: dota2 crashes while loading. I'll get a console output and
if we need more, I'll attach a gdb to the loading process.