A user connects a modern laptop to an external monitor using a USB Type-C cable, but the monitor displays no video signal. The technician confirms that the laptop's USB Type-C port natively supports DisplayPort Alternate Mode (DP Alt Mode). Which cable specification should the technician select to resolve this issue?
- A USB Type-C cable explicitly rated for high-speed video data transfer and DisplayPort Alternate ModeAnswer
- BA standard USB Type-C charging cable configured only for USB 2.0 data and Power Delivery
- CA single-link DVI-D passive adapter cable connected to the USB Type-C port
- DA DB-15 analog VGA cable using a passive mechanical connector adapter
Answer
A USB Type-C cable explicitly rated for high-speed video data transfer and DisplayPort Alternate Mode
DisplayPort Alternate Mode transmits native display signals over a physical USB Type-C connector, but requires a cable constructed with high-speed data lanes certified for video bandwidth.
Step-by-Step Solution
Key Concept
DisplayPort Alternate Mode requires a USB Type-C cable certified for video data throughput, rather than a cable meant only for charging or basic USB 2.0 data.