Digital cable TV receiver, diagnostic method for the digital cable TV receiver, and data structure of DVI status report

摘要

A host includes a plurality of Digital Visual Interface (DVI) ports. A controller is configured to receive a single DVI diagnostic request from a source external to the host. The controller is further configured to collect DVI status information associated with each of the plurality of DVI ports in response to the single DVI diagnostic request, and initiate a signal to a display to display the DVI status information associated with the plurality of DVI ports.