Abstract: The disclosure provides a display apparatus and a communication connection method. The display apparatus includes: a display; a communicator, configured to receive information input from the terminal device; and a controller, in connection with the display and communicator and configured to: while the display apparatus is in communication connection with the terminal device, send network information of the display apparatus to the terminal device in response to change of device information of the display apparatus, so that the terminal device generates a request for obtaining device information according to the network information, wherein the request for obtaining the device information is configured to obtain changed device information of the display apparatus; and in response to the request for obtaining the device information sent from the terminal device, send the changed device information to the terminal device, and re-establish the communication connection with the terminal device.

Abstract: Disclosed are a method for waking up an audio device, and a display apparatus. The method includes: while the display apparatus is in a standby state, in response to a power command input from a user, controlling the display apparatus to enter a power-on state from a standby state, and in response to determining that there is an audio device among a plurality of external devices connected with the display apparatus via HDMI interfaces, controlling the audio device to enter a power-on state first, and then controlling other external devices among the plurality of external devices except for the audio device to enter a power-on state.

Abstract: Disclosed are a switching method for an audio output channel, and a display apparatus. The method includes: in response to a switch operation for switching an audio output channel of an external power amplifier, obtaining a first state value corresponding to the switch operation, where the audio output channel of the external power amplifier includes an ARC and/or an eARC, and the first state value is used for indicating an on/off state of the eARC specified by the switch operation; and adjusting a connection state of the ARC and a connection state of the eARC according to the first state value, and determining a target channel for outputting audio according to an adjusting result; and displaying the on/off state of the eARC matching with the target channel.

Abstract: Disclosed are a method, and a display apparatus. The method includes: in response to a switching operation for an audio output channel of an external power amplifier, acquiring a first state corresponding to the switching operation; the audio output channel of the external power amplifier includes an ARC and/or an eARC, and the first state is configured to indicate on-off state of the eARC that is designated by the switching operation; and adjusting a connection state of the ARC and the eARC according to the first state, determining a target channel for outputting audio according to an adjustment of the connection state of the ARC and the eARC, and displaying the on-off state of the eARC that matches the target channel.

Abstract: Disclosed are a method for waking up an audio device, and a display apparatus. The method includes: while the display apparatus is in a standby state, in response to a power command input from a user, controlling the display apparatus to enter a power-on state from a standby state, and in response to determining that there is an audio device among a plurality of external devices connected with the display apparatus via HDMI interfaces, controlling the audio device to enter a power-on state first, and then controlling other external devices among the plurality of external devices except for the audio device to enter a power-on state.