It’s bully for the device if it knows, but that doesn’t help the user who has just pulled one identical looking cable out of many from the drawer and will have no idea until they plug it in whether or not they will get a picture, nothing, near-undiagnosable partial functionality, or smoke.
I think this is the reason a number of standards are going to active cables, so the device will know the cable isn’t up to standard.
Or in the case of USB-C, so it doesn’t catch fire after having five amps cranked through it.
It’s bully for the device if it knows, but that doesn’t help the user who has just pulled one identical looking cable out of many from the drawer and will have no idea until they plug it in whether or not they will get a picture, nothing, near-undiagnosable partial functionality, or smoke.
I’m thinking that the user will get a notification that the cable they’re using isn’t the correct one.
On the screen that doesn’t work?
HDMI is reverse compatible a long way back, almost every device will fall back to a standard that doesn’t require such an expensive cable.
Come on man, this is simple stuff.