Patent ID: 7366886
Filing Date: 2008-04-29
Classification: G09G

Abstract:
1. A control method of a computer system including a main body and a monitor displaying a video signal from the main body, the control method of the computer system comprising: storing a display information of the video signal displayed on the monitor, wherein the display information is based on Extended Display Identification Data (EDID) supplied from the monitor in the main body; determining whether the display information of the input video signal transmitted from the main body to the monitor is suitable for the EDID of the monitor; displaying the input video signal if determined that the display information of the input video signal is suitable for the EDID and supplying an error signal to the main body if determined that the display information of the input video signal is not suitable for the EDID; processing the input video signal according to the display information stored in the main body and supplying the processed video signal to the monitor if the error signal is supplied to the computer main body, wherein a part of the error signal is the same as a part of the EDID; and updating the storing the display information with an error EDID when the transmitted display information of the input video signal is not suitable for the EDID.