Re: IIgs RGB to VGA continued

["Bill Garber" <willy46pa@comcast.net>]

"Bill Garber" <willy46pa@comcast.net> wrote in message
R9-dnWOCsLREpG_ZnZ2dnUVZ_tidnZ2d@comcast.com">news:R9-dnWOCsLREpG_ZnZ2dnUVZ_tidnZ2d@comcast.com...
:
: "jsnospam@cimmeri.com" <js@cimmeri.com> wrote in message
: 1156722814.694071.141910@i42g2000cwa.googlegroups.com">news:1156722814.694071.141910@i42g2000cwa.googlegroups.com...
: :
: : > What I'm seeing is the composite screen, only in color. The composite
: output on the IIgs strips color and displays in greyscale (monochrome).
: :
: : ** Not using the composite output.   You're seeing a very sharp display
: : of 640 lines.
: :
: :
: : > Wow!  This appears to have something wrong with Horizontal sync.
: :
: : ** What makes you say that?
:
: That was in response to the view with the giant black band
: thru the middle, which is not there in photo number 3.
:
: I will take a step or two away now. Michael Mahon is the
: man for this job. Not I.
:
: Bill G.

My comment about it looking like composite was implying that
the composite signal is at a lower resolution than the RGB,
which leads me to believe that your device is not sampling
the signal enough before outputting to the VGA display, or
as Michael has implied, is sampling it too many times. That
is a difficult one to determine without actually seeing the
device, or a schematic of the same.

Bill Garber