Patent ID: 8661492

Claim:
A communication apparatus comprising: a transmitting unit that transmits video data to an external apparatus, connected to a repeater apparatus, via the repeater apparatus; and an acquisition unit that performs a process for acquires first information from the repeater apparatus, wherein the acquisition unit performs a process for acquiring the first information from the repeater apparatus after a Hot Plug Detect (HPD) signal is changed to a high level from a low level, wherein the first information includes information for generating video data, wherein the acquisition unit performs a process for acquiring second information from the repeater apparatus if a predetermined state of an external apparatus, connected to the repeater apparatus, is changed to a first state from a second state after the first information is acquired from the repeater apparatus, wherein the second information includes information for generating video data, wherein the first state is a state that an external apparatus, connected to the repeater apparatus, displays video data to be transmitted from the repeater apparatus, and wherein the second state is a state that an external apparatus connected to the repeater apparatus, does not display video data to be transmitted from the repeater apparatus.