ELSA Synergy 2000, Manual

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Graphics know-how
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| ELSA Synergy 2000 |
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(formerly used as monitor ID bit 3) is used as transmission clock (SCL). The
graphics board can request the short EDID information (see DDC1) as well as
the more comprehensive VDIF information (VESA Display Identification File).
4.2.9 DDC2AB
With DDC2AB additional to DDC2B, the computer can send commands for
controlling the monitor, e.g. for adjusting the screen position or the bright-
ness (similar to ACCESS bus). Modern monitors and graphics boards no
longer use this standard.
The pin assignment of the VGA D-shell socket can be found in the chapter
'Technical data'.