[krackers]

>While I can't share any technical details... The engineer provided some suggestions and hints that I can use right now to maybe — just maybe — get things working in the short term

Great that you have a workaround now, but the fact that you can't even share what the workaround is, ironically speaks to the last line in https://news.ycombinator.com/item?id=43904921 of how Apple communicates

>there’s this trick of setting it to this but then change to that and it’ll work. Undocumented but now you know

When you do implement the workaround, maybe you could do it in an overtly-named function spottable via disassembly so that others facing similar constraints of latency-sensitive GPU have some lead as to the magic incantation to use?

[humbledrone]

Despite enjoying your idea, I probably won't do that, but certainly anyone who actually has this same problem should reach out to me and I'll put them in touch with the right folks at Apple, who can share the info.