Can You Convert HDMI Output to a DisplayLink USB Input?
This article explains the compatibility constraints regarding video signal conversion on the 0700L and 0702L touchscreen monitors from Elo — Now part of Zebra Technologies, which are integrated with a DisplayLink chip.
Direct Answer: No, you cannot convert a standard HDMI output into a DisplayLink USB input on a monitor. A physical adapter or simple converter cable will not work for this configuration.
How DisplayLink Works: The USB port on a DisplayLink-enabled monitor is an input designed exclusively to receive a compressed data stream from a computer running the official DisplayLink software driver. The monitor features a built-in DisplayLink decoder chip that unpacks this data stream and translates it back into a video signal.
Why Converting HDMI to DisplayLink USB Fails
There are four fundamental technical reasons why an HDMI-to-USB DisplayLink connection is impossible:
- 1. Signal Direction & Protocols: HDMI ports output a standard, uncompressed physical video signal from source devices (such as PCs, media players, or gaming consoles). Conversely, a DisplayLink USB port is an input expecting a packetized software-based data stream. These two formats cannot interface without a host computer in the middle.
- 2. Fundamentally Different Technologies: HDMI transmits raw, high-bandwidth video over dedicated TMDS physical lanes. DisplayLink uses the host computer's CPU and graphics memory to compress and packetize video frames into standard USB data packets, which are then transmitted over a generic USB bus.
- 3. Lack of a DisplayLink Host: Consumer electronics (such as Blu-ray players, streaming sticks, or gaming consoles) do not run the proprietary DisplayLink software driver. Without this background software, the source device cannot package or stream its video output into a format the monitor's internal decoder chip can recognize.
- 4. Hardware Adapter Limitations: Because the physical layers and data protocols are entirely different, a simple, non-powered adapter block cannot bridge the two. To drive a DisplayLink monitor, you must connect it to a supported host computer via USB with the appropriate drivers installed.
Next Steps & Driver Installation: If you need assistance setting up or installing the appropriate DisplayLink drivers for your 0700L or 0702L monitors, please refer to our Driver Installation Guide.
Please report any broken links by emailing support@elotouch.com and include a link to the knowledge article