另外这世界上不存在一种叫hdmi 2.0 cable的线
这是hdmi官方回复:
Does HDMI 2.0 require new cables?
No, HDMI 2.0 features will work with existing HDMI cables. Higher bandwidth features, such as 4K@50/60 (2160p) video formats, will require existing High Speed HDMI cables (Category 2 cables).