When I test the HDMI example design with an OTT TV Box M8, occasionally the Video does not appear.
The HDMI RX info reports bad link quality:
Link quality channel 0 : bad (18109)
Link quality channel 1 : bad (65535)
Link quality channel 2 : good (23)
This is a known issue due to link integrity issues on the OTT TV Box M8.
It is not recommended for use when testing the HDMI example design.