Patent ID: 8615611

Claim:
An integration device for selectively communicating DisplayPort and non-DisplayPort information over a DisplayPort cable, the device comprising: a main link switching circuit configured to selectively couple channels of a first DisplayPort cable and one or more channels of a non-DisplayPort cable to one or more channels of a second DisplayPort cable; and a controller configured to: in response to determining that the device is configured to operate in a first mode: cause the main link switching circuit to couple the channels of the first DisplayPort cable to the channels of the second DisplayPort cable; and in response to determining that the device is configured to operate in a second mode: cause the main link switching circuit to couple the one or more channels of the non-DisplayPort cable to the one or more channels of the second DisplayPort cable; and cause a DisplayPort source device to transmit DisplayPort data over less than all of a set of main link channels by: receiving DisplayPort configuration data (DPCD) from a DisplayPort sink device; altering the DPCD; and transmitting the altered DPCD to the DisplayPort source device; wherein altering the DPCD includes altering a maximum number of available lanes indicated by the DPCD or altering a link training response value to indicate that clock recovery on at least one lane was unsuccessful.