Aha , you talk E-GPU. Different beasts different requirements , never played with it. Dont need it.
You did not specify egpu in your original post just that dual nvidia gpus does not work under high sierra and THAT is not correct.
E.g. in intel based hackintosh 10.13.6 , or for that matter a Mac Pro tower with enough pcie slots zero issues. Even in high siera based vm’s no probs. So the OS supports it. Likely there is some thunderbolt egpu limit.
EDIT: apologies, i checked my logs and aparantly i split of my dual gpu systems to spread the gpus over a few other boxes as did not really needed the dual gpu performance. I could have sworn i did that AFTER the move to high sierra but in fact i did that before high sierra.
I just dropped an extra 980ti in one of my single 980ti systems and it boots and seems to work, but resolve plays at 50% of the speed. So 24fps clips without grades played at around 10.
Super weird.
So maybe there is indeed something there.
Apologies for the noise i generated by my mistake.
EDIT2: aparantly you can get multi gpu to work with a specific nvidia driver version forced. (but that driver may or may not work with DR16) See this post. When i have some time some day i may play with it but atm no dual gpu requirement. But that may change. But obviously we are all getting realy tired and pissed by this apple nvidia situation.......
https://www.tonymacx86.com/threads/solv ... st-1854853
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