Display Data Channel Snooping Scheme for Retimers

A retimer device comprising:

• a receiver coupled to receive communication data from a source device using a main communication channel, and coupled to receive configuration data from a source device using a display data channel;
• a transmitter coupled to the output of the receiver;
• a storage component coupled to the receiver and the transmitter;
• and
• a processing device coupled to the storage device, the processing device configured to:
• identify at least one command included in configuration data that matches one or more previously stored commands retrieved by the retimer device,
• decode the identified at least one command,
• obtain one or more configuration settings from the decoded at least one command, and
• store the obtained one or more configuration settings in the storage component;
• the receiver configured to retrieve a first set of the one or more configuration settings from the storage device and modify the received communication data based on the first set of the one or more configuration settings;
• and
• the transmitter configured to retrieve a second set of the one or more configuration settings from the storage device and modify communication data output from the receiver based on the second set of the one or more configuration settings.