Patent ID: 11942019
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  A  H | IPC A  G

Claim 9:
10. A method of controlling an electronic apparatus, the method comprising:
based on an event for reading extended display identification data (EDID) stored in a memory at an external apparatus connected through a communication interface occurring, changing the EDID information from first EDID information stored in the memory into second EDID information, and toggling a first signal related to the communication interface;
after the first signal is toggled, monitoring a signal output from the external apparatus and identifying whether the external apparatus failed to read EDID information; and
based on identifying that the external apparatus failed to read the EDID information, toggling a second signal related to the communication interface,
wherein the first signal comprises:
at least one of a hot plug detect (HPD) signal, a serial data line (SCL) signal in a display data channel (DDC) signal, or a serial clock line (SDA) signal of the DDC,

wherein the second signal comprises:
at least one other of the HPD signal, the SCL signal, or the SDA signal, and

wherein a signal output from the external apparatus comprises:
at least one of a clock signal or a display data channel (DDC) signal.