A video display system comprising: an information processing apparatus to output video signals; and a video display apparatus to be connected to the information processing apparatus and to display a video based on the video signals received from the information processing apparatus, the information processing apparatus including: a first wire to be supplied with a connection signal indicating a connection with the video display apparatus from the video display apparatus; and a connection determining circuit to determine, based on a signal on the first wire, whether the video display apparatus is connected or not, the video display apparatus including: a connection signal generating circuit to generate the connection signal; and a second wire to be connected to the first wire of the information processing apparatus and to supply the connection signal to the first wire, wherein characterized in that the information processing apparatus further includes: a display control circuit to output a display stop instruction signal for giving an instruction to stop displaying the video on the video display apparatus; a drive circuit to transmit the display stop instruction signal via the first wire to the video display apparatus when the display stop instruction signal is received from the display control circuit; and a pseudo connection signal transmission circuit to transmit a pseudo connection signal in place of the connection signal to the connection determining circuit when the display stop instruction signal is received from the display control circuit, and the video display apparatus further includes: a display stop instruction detecting circuit to detect the display stop instruction signal transmitted to the second wire via the first wire. an information processing apparatus to output video signals; and a video display apparatus to be connected to the information processing apparatus and to display a video based on the video signals received from the information processing apparatus, the information processing apparatus including: a first wire to be supplied with a connection signal indicating a connection with the video display apparatus from the video display apparatus; and a connection determining circuit to determine, based on a signal on the first wire, whether the video display apparatus is connected or not, a first wire to be supplied with a connection signal indicating a connection with the video display apparatus from the video display apparatus; and a connection determining circuit to determine, based on a signal on the first wire, whether the video display apparatus is connected or not, the video display apparatus including: a connection signal generating circuit to generate the connection signal; and a second wire to be connected to the first wire of the information processing apparatus and to supply the connection signal to the first wire, wherein characterized in that the information processing apparatus further includes: a display control circuit to output a display stop instruction signal for giving an instruction to stop displaying the video on the video display apparatus; a drive circuit to transmit the display stop instruction signal via the first wire to the video display apparatus when the display stop instruction signal is received from the display control circuit; and a pseudo connection signal transmission circuit to transmit a pseudo connection signal in place of the connection signal to the connection determining circuit when the display stop instruction signal is received from the display control circuit, and a connection signal generating circuit to generate the connection signal; and a second wire to be connected to the first wire of the information processing apparatus and to supply the connection signal to the first wire, wherein characterized in that the information processing apparatus further includes: a display control circuit to output a display stop instruction signal for giving an instruction to stop displaying the video on the video display apparatus; a drive circuit to transmit the display stop instruction signal via the first wire to the video display apparatus when the display stop instruction signal is received from the display control circuit; and a pseudo connection signal transmission circuit to transmit a pseudo connection signal in place of the connection signal to the connection determining circuit when the display stop instruction signal is received from the display control circuit, and a display control circuit to output a display stop instruction signal for giving an instruction to stop displaying the video on the video display apparatus; a drive circuit to transmit the display stop instruction signal via the first wire to the video display apparatus when the display stop instruction signal is received from the display control circuit; and a pseudo connection signal transmission circuit to transmit a pseudo connection signal in place of the connection signal to the connection determining circuit when the display stop instruction signal is received from the display control circuit, and the video display apparatus further includes: a display stop instruction detecting circuit to detect the display stop instruction signal transmitted to the second wire via the first wire. a display stop instruction detecting circuit to detect the display stop instruction signal transmitted to the second wire via the first wire.