A method for signal detection in a display device, the display device comprising a timing controller and a source driver , the method being applied to the timing controller and comprising: transmitting a test code stream to the source driver , the test code stream being obtained through encoding of an initial code stream by the timing controller , the initial code stream representing a test signal; characterised by : determining whether configuration information of the source driver matches with reference information of the timing controller in response to reception of the configuration information from the source driver , wherein the reception of the configuration information indicates detection by the source driver that a decoded code stream is different from the initial code stream, the decoded code stream being obtained by decoding the test code stream by the source driver ; and adjusting the configuration information according to the reference information when the configuration information is determined to be different from the reference information, and transmitting the adjusted configuration information to the source driver so that the source driver receives a subsequently transmitted signal according to the adjusted configuration information . transmitting a test code stream to the source driver , the test code stream being obtained through encoding of an initial code stream by the timing controller , the initial code stream representing a test signal; characterised by : determining whether configuration information of the source driver matches with reference information of the timing controller in response to reception of the configuration information from the source driver , wherein the reception of the configuration information indicates detection by the source driver that a decoded code stream is different from the initial code stream, the decoded code stream being obtained by decoding the test code stream by the source driver ; and adjusting the configuration information according to the reference information when the configuration information is determined to be different from the reference information, and transmitting the adjusted configuration information to the source driver so that the source driver receives a subsequently transmitted signal according to the adjusted configuration information . determining whether configuration information of the source driver matches with reference information of the timing controller in response to reception of the configuration information from the source driver , wherein the reception of the configuration information indicates detection by the source driver that a decoded code stream is different from the initial code stream, the decoded code stream being obtained by decoding the test code stream by the source driver ; and adjusting the configuration information according to the reference information when the configuration information is determined to be different from the reference information, and transmitting the adjusted configuration information to the source driver so that the source driver receives a subsequently transmitted signal according to the adjusted configuration information . <EOS>