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how to know my edid has been read by source sucessfully?

Question asked by on Jul 16, 2012
Latest reply on Jul 18, 2012 by GuenterL


     i used a edid array from DaveD who wtitten to 7441a.  i'm sure i wrote the array to 7441a sucessfully.but how can i know the edid have been read by source sucessfully?

     i describe my problem. my system  is dvi input---->7441a--->9889b---->dvi LCD.  when a  dvi source connects to my system,the LCD will display the correct image,but after 1 second the LCD display black and after 2 seconds the LCD will display normal again. why this happens? it is my edid problem? how can i know the edid have been read by source sucessfully?

     could you help me ?

Below is edid from DaveD.

     could you help me ?


unsigned char EDID[] =


0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00, //0x00 - 0x07

0x05,0x87,0x48,0x44,0x01,0x00,0x00,0x00, //0x08 - 0x0F

0x22,0x0E,0x01,0x03,0x80,0x31,0x1C,0xA0, //0x10 - 0x17

0x2A,0xAA,0x33,0xA4,0x55,0x48,0x93,0x25, //0x18 - 0x1F

0x10,0x45,0x47,0x20,0x00,0x00,0x01,0x01, //0x20 - 0x27

0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01, //0x28 - 0x2F

0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x1D, //0x30 - 0x37

0x00,0x72,0x51,0xD0,0x1E,0x20,0x46,0x28, //0x38 - 0x3F

0x55,0x00,0xE8,0x12,0x11,0x00,0x00,0x18, //0x40 - 0x47

0x8C,0x0A,0xD0,0x8A,0x20,0xE0,0x2D,0x10, //0x48 - 0x4F

0x10,0x3E,0x96,0x00,0xE8,0x12,0x11,0x00, //0x50 - 0x57

0x00,0x18,0x00,0x00,0x00,0xFC,0x00,0x48, //0x58 - 0x5F

0x44,0x4D,0x49,0x20,0x54,0x56,0x0A,0x20, //0x60 - 0x67

0x20,0x20,0x20,0x20,0x00,0x00,0x00,0xFD, //0x68 - 0x6F

0x00,0x31,0x3D,0x0F,0x2E,0x08,0x00,0x0A, //0x70 - 0x77

0x20,0x20,0x20,0x20,0x20,0x20,0x01,0x00, //0x78 - 0x7F

0x02,0x03,0x1C,0x71,0x49,0x84,0x85,0x03, //0x80 - 0x87

0x12,0x01,0x13,0x20,0x21,0x22,0x23,0x0A, //0x88 - 0x8F

0x04,0x01,0x83,0x01,0x00,0x00,0x65,0x03, //0x90 - 0x97

0x0C,0x00,0x10,0x00,0x01,0x1D,0x00,0x72, //0x98 - 0x9F

0x51,0xD0,0x1E,0x20,0x6E,0x28,0x55,0x00, //0xA0 - 0xA7

0xE8,0x12,0x11,0x00,0x00,0x1E,0x8C,0x0A, //0xA8 - 0xAF

0xD0,0x90,0x20,0x40,0x31,0x20,0x0C,0x40, //0xB0 - 0xB7

0x55,0x00,0xE8,0x12,0x11,0x00,0x00,0x18, //0xB8 - 0xBF

0x8C,0x0A,0xD0,0x8A,0x20,0xE0,0x2D,0x10, //0xC0 - 0xC7

0x10,0x3E,0x96,0x00,0xE8,0x12,0x11,0x00, //0xC8 - 0xCF

0x00,0x18,0x01,0x1D,0x80,0x18,0x71,0x1C, //0xD0 - 0xD7

0x16,0x20,0x58,0x28,0x25,0x00,0xE8,0x12, //0xD8 - 0xDF

0x11,0x00,0x00,0x98,0x01,0x1D,0x00,0xBC, //0xE0 - 0xE7

0x52,0xD0,0x1E,0x20,0xB8,0x28,0x55,0x40, //0xE8 - 0xEF

0xE8,0x12,0x11,0x00,0x00,0x1E,0x00,0x00, //0xF0 - 0xF7

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00  //0xF8 - 0xFF