Hi Ard > Hi, > > Is this a theoretical concern? Or are you aware of any user that is > actually affected by this? We had a Mac Mini user who wasn't able to use hybrid graphics on his Mac after using the eGPU. So no, it's not a theoretical concern > In any case, given the niche nature, enabling this more widely by > default does not seem like a great approach, as the risk for > regressions outweighs the benefit. > > I could imagine the use of a EFI variable to opt into this, would that > work? It would have to be set only once from user space (using > efivarfs) I'm not really sure about efivars here, but am ready to test. As long as it doesn't break booting of macOS or Windows, I don't find it an issue. macOS may also reset the variable, again have to verify by testing the same. I guess it will also get reset if a users resets their NVRAM.