Specifications

D:\D\inter61a\INTERRUP.A Saturday, January 08, 2011 11:31 AM
--------V-104F15BL01-------------------------
INT 10 - VESA VBE/DC (Display Data Channel) - READ EDID
AX = 4F15h
BL = 01h
CX = 0000h
DX = 0000h
ES:DI -> 128-byte buffer for EDID record (see #00127)
Return: AL = 4Fh if function supported
AH = status
00h successful
ES:DI buffer filled
01h failed (e.g. non-DDC monitor)
SeeAlso: AX=4F15h/BL=00h,AX=4F15h/BL=02h,I2C A0h"DDC"
Format of VESA EDID record:
Offset Size Description (Table 00127)
00h 8 BYTEs padding (all FFh, or 00h FFh..FFh 00h)
08h WORD big-endian manufacturer ID (see #00136)
bits 14-10: first letter (01h='A', 02h='B', etc.)
bits 9-5: second letter
bits 4-0: third letter
0Ah WORD EDID ID code -- identifies monitor model
0Ch DWORD serial number or FFFFFFFFh
for "MAG", subtract 7000000 to get actual serial number
for "OQI", subtract 456150000
for "PHL", subtract ???
for "VSC", subtract 640000000
10h BYTE week number of manufacture
11h BYTE manufacture year - 1990
12h BYTE EDID version
13h BYTE EDID revision
14h BYTE video input type (see #00129)
15h BYTE maximum horizontal size in cm
16h BYTE maximum vertical size in cm
17h BYTE gamma factor (gamma = 1.0 + factor/100, so max = 3.55)
18h BYTE DPMS flags (see #00128)
19h BYTE chroma information: green X'/Y' and red X'/Y'
1Ah BYTE chroma information: white X'/Y' and blue X'/Y'
1Bh BYTE chroma information: red Y
1Ch BYTE chroma information: red X
1Dh BYTE chroma information: green Y
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