A Video Graphics Array (VGA) connector is a three-row 15-pin DE-15
connector. The 15-pin VGA connector is found on many video cards,
computer monitors, and high definition television sets.
connector. The 15-pin VGA connector is found on many video cards,
computer monitors, and high definition television sets.
DE-15 has been conventionally referred to ambiguously as D-sub 15,
incorrectly as DB-15 and often as HD-15 (High Density, to distinguish
it from the older and less flexible DE-9 connector used on old VGA cards,
which has the same E shell size but only two rows of pins).
incorrectly as DB-15 and often as HD-15 (High Density, to distinguish
it from the older and less flexible DE-9 connector used on old VGA cards,
which has the same E shell size but only two rows of pins).
Four pins carried
Monitor ID bits which were rarely used; VESA DDC redefined some of
these pins and replaced the key pin with +5 V DC power supply.
Monitor ID bits which were rarely used; VESA DDC redefined some of
these pins and replaced the key pin with +5 V DC power supply.
However, nothing in the design
ensures that the ground pins make a connection first and break last,
so hotplugging may introduce surges in signal lines which may or may
not be adequately protected against. Also, depending on the hardware
and software, detecting a monitor being connected might not work
properly in all cases.
ensures that the ground pins make a connection first and break last,
so hotplugging may introduce surges in signal lines which may or may
not be adequately protected against. Also, depending on the hardware
and software, detecting a monitor being connected might not work
properly in all cases.
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