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4 Appendix B - HDMI-Rx Link-up

This section covers configuration of HDMI-Rx using media-ctl utility and HDMI-Tx using modetest utility, along with demonstrating HDMI-Rx/Tx link-up issues and steps to switch HDMI-Rx resolution. It also contains sample GStreamer HDMI Video pipelines for Display, Stream-in and Stream-out ROI use-cases.

• HDMI source can be locked to any resolution. Run the below command for all media nodes to print media device topology. In the topology log, look for the v_hdmi_rx_ss string to identify To check the link status, resolution and video node of the HDMI input source media node, run below media-ctl command.

  Code Block
  media-ctl -p -d /dev/media0

• To check the link status, resolution and video node of the HDMI input source, run below media-ctl command.

  Code Block
  media-ctl -p -d /dev/media0

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