On Mon, Jul 01, 2024 at 11:14:52PM +1000, Orlando Chamberlain wrote: > > FWIW, there would be only 6 models to match if this needs to be > > constrained to ones with dual GPUs: > > > > MacBookPro11,3 > > MacBookPro11,5 > > MacBookPro13,3 > > MacBookPro14,3 > > MacBookPro15,1 > > MacBookPro16,1 > > I know that at least these two also need it: > MacBookPro16,4 > MacBookPro15,3 Ah okay, thanks. I went by the list in Wikipedia, disappointing that it apparently wasn't updated with those final T2 models: https://en.wikipedia.org/wiki/MacBook_Pro_(Intel-based) > I think there could be more older ones too. Apple has a list of > MacBookPros [0], but I don't know how many of the older models that > list 2 gpus on their "Tech Specs" pages need apple-set-os. No, Bruno Bierbaumer's page lists the MacBookPro11,3 and 11,5 as the first models that need apple_set_os: https://github.com/0xbb/gpu-switch I'm still using a MacBookPro9,1 (last pre-retina) on a daily basis and apple_set_os isn't needed there. Neither on the MacBookPro10,1 (first retina). Both were introduced mid 2012. > The original apple-set-os code was posted to the GRUB mailing list in > December 2013 [1] so maybe it was in 2013 that new dual GPU Macbooks > started needing apple-set-os? Yes, Haswell generation introduced Oct 2013 was the first one that needed it. Thanks, Lukas