[comp.sys.ibm.pc.misc] Any CGA experts still around?

ed@zaphod.uchicago.edu (Ed Friedman) (05/11/91)

I have recently acquired for next to nothing an IBM 3270 PC with a 5272
color monitor.  The problem is that although colors work fine on the
monitor, no graphics show up at all.  System info claims that CGA is in
place, but when I tried replacing the graphics card with  a standard CGA
card I saw nothing but garbage on the screen.  A call to IBM revealed that
the ROM's are not able to recognize graphics calls, but I was wondering if
anyone knows of a 3rd party board that might have been built to work around
this problem.

Thanks in advance,

Ed Friedman

INTERNET: ed@zaphod.uchicago.edu

oneel@heawk1.gsfc.nasa.gov ( Bruce Oneel ) (05/13/91)

In article <1991May11.165935.6572@midway.uchicago.edu> ed@zaphod.uchicago.edu (Ed Friedman) writes:



   I have recently acquired for next to nothing an IBM 3270 PC with a 5272
   color monitor.  The problem is that although colors work fine on the
   monitor, no graphics show up at all.  System info claims that CGA is in
   place, but when I tried replacing the graphics card with  a standard CGA
   card I saw nothing but garbage on the screen.  A call to IBM revealed that
   the ROM's are not able to recognize graphics calls, but I was wondering if
   anyone knows of a 3rd party board that might have been built to work around
   this problem.

   Thanks in advance,

   Ed Friedman

   INTERNET: ed@zaphod.uchicago.edu

Borland's Turbo C++ had a separate driver for the 3270 pc, to the best
of my knowledge, for their BGI graphics package.  This would indicate
that it isn't a CGA, but has other capabilities.

For what it's worth

bruce
--
Bruce O'Neel              oneel@heasfs.gsfc.nasa.gov
NASA/GSFC/STX/Code 664