why would they do that? its not like they are crushing nvidia and can do whatever they want with a captive market. also not documenting it will prevent people

why would they do that? its not like they are crushing nvidia and can do whatever they want with a captive market. also not documenting it will prevent people from giving them money for adapters. ..maybe it is riaa enforcing protections against the analog loopback on drm content? that is the only explanation. they are getting money to do that to users. so you can be the product even when paying?