aptr@ur-tut (The Wumpus) (05/25/88)
Well, I finally got a chance to try the new AT&T VDC750 card. So far
I have tried it with in a 6300 WGS and used both an AT&T 319 monitor
and a Xerox color monitor from a Xerox 6064 (yet another relabeled
Olivetti M24) that appears to be internally identical to the 318
monitor. The 319 handled EGA modes better then the Xerox monitor. EGA
came out slightly squished (about 85% normal height) on the Xerox
monitor, but worked perfectly on the AT&T 319 monitor.
The VDC 750 supports all EGA modes along with all of the graphic modes
that came on AT&T's Indigenous Display Card (CGA, 640x400 monochrome).
It does not support AT&T's Diplay Enhancment Board's 640x400 16 color
mode, but does offer this as an extended EGA mode (using different
drivers).
I have yet to try the car in an old 6300, but I will probably post
my results when I ge a chance.
Summary: The VDC750 display card appears to be one of the easiest ways
to add EGA capability to a 6300 without having to replace the monitor
that came with the 6300. The board lists for $500. It does suffer from
the same problems that all EGA cards used in the 6300. The problem
stems from poor programming practises on the part of many programs. The
board does come with a set of patches for Microsoft Windows and AutoCad
to allow them access to its 640x400 16 color mode.
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