I have seen a previous post on the Engineer Zone regarding a similar issue (ADV7625 evaluation boards Rx termination problem
Amos on 4 May 2015). As no specific solution was provided, I would like to ask about this again.
The symptoms are almost identical.
Currently, when connected to a MOUSE, DELL or HP computer, switching to the PC side causes the DC level on the TMDS line to be lost.
Even when the terminating resistor is kept ON at all times, the DC level sticks to GND, and the amplitude becomes larger than normal.
As an addition to my previous post, when the device is operating normally, switching the terminating resistor OFF and then back ON results in the same condition.
Please let me know if there is a way to recover from this state via some register setting (a software or hardware solution that does not involve plugging or unplugging the connector).
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