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UPPORTED DISPLAY CONFIGURATIONS
(Note: VGA connections can still achieve digital DVI quality when all components in the chain
are working optimally. Some top-quality flat-panel displays can even automatically adjust for
some defects in the analog signal. Using a digital DVI signal simply is a more reliable approach,
because it avoids signal conversion altogether.)
For cost reasons, entry-level flat-panel displays and data projectors are often offered with only
VGA connections, since all PCs support that connection type. Mid-market and premium flat-
panel displays and projectors typically offer both analog VGA and digital DVI connections.
(Some premium displays offer only digital DVI connections, to ensure proper display quality.)
There are actually two types of DVI connectors found on flat-panel displays and data projectors.
DVI-D connectors are strictly digital connectors and support only a digital signal path. DVI-I
connectors support digital connections, but also offer backward support for analog connections.
Typically this support is offered via an adapter cable with a DVI connector on one end and a
VGA connector on the other end (to attach to a PC having only a VGA display output
connection).
For the most reliable quality, choose an flat-panel display or data projector offering a true
digital connection. A DVI-D connector is a sure sign of such support. If a DVI-I connector is
offered, be sure that the display supports a true digital connection through this connector. (In rare
cases, a display might use a DVI-I connector but offer only an analog connection.)
One excellent flat-panel display to consider is the NEC LCD1880SX, which offers a true
digital DVI connection at 1280 by 1024 resolution – the maximum digital DVI output resolution
of the SideCar MMS series.
See chapter 12 for more about flat-panel display features and options. You can also visit the
Digital Tigers Web site and use our online display database spanning hundreds of models.