Ah, so maybe DisplayPort has mandatory link training then, which would indeed allow unmarked cables. But to GPs point, there still needs to be a way to tell th

Ah, so maybe DisplayPort has mandatory link training then, which would indeed allow unmarked cables. But to GPs point, there still needs to be a way to tell the source that a given cable is a USB-C-to-DisplayPort one in the first place. So why not include the metadata on what signal grades it’s rated for in that same indicator? That’s exactly what e-markers are.