Path: utzoo!attcan!uunet!cbmvax!cbmehq!cbmger!danube!thibav!choelzl
From: choelzl@thibav.UUCP (Christoph Hoelzl)
Newsgroups: comp.sys.amiga.hardware
Subject: Re:  Will a 1084 speak EGA?
Message-ID: <3369.015619@thibav.UUCP>
Date: 10 Jan 91 05:25:19 GMT
References: <19289@hydra.gatech.EDU> <698@cbmger.UUCP>
Organization: THI Production
Lines: 36

>In article <698@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes:
>In article <19289@hydra.gatech.EDU> gt4662b@prism.gatech.EDU (BRANHAM,JOSEPH FRANKLIN) writes:
>>My girlfriend has a Bridgeboard and a 1084S monitor. Can she use the 1084
>>with an EGA card using the digital inputs to the monitor?   
>
>No, please don't try it. You might damage the monitor.
>We tried with two monitors. The first showed a very small picture
>and died after some hours. The second had a little bigger picture
>but still smaller than normal and survived that 8-day faire.
>But if you don't want to risk your equipment, don't do it.
>
>Obviously the scan rates for EGA differ so heavily from normal
>Amiga modes that the 1084 can't synchronize properly. And this
>is always an extreme stress for monitors.
>
>-- 
>Best regards, Dr. Peter Kittel  // E-Mail to  \\  Only my personal opinions... 
>Commodore Frankfurt, Germany  \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk


currently i have a genoa superega hires+ 4880 ega-card installed in my pc.
(will be a vga-card + nec 3d soon :-) ). i'm feeding the video output to the
RGB-TTL input (DIN-jack) of my 1081 (should not be too different to an 1084
i guess (internal electronics)).
the system works fine, as long as i use the lowres ega modes e.g. 640*200 in
16 colours (suitable for sierra-adventures ;-) ). when trying higher
resolutions the monitor simply doesn't sync and produces 'screaming' noise.
(i suppose it won't do him (??) good, so then i turn it off.)
i tried the same connection to an optima-vga in lores-ega-modes, but it
was a failure, so i guess it's a nice hw-feature of the genoa-card.


Best regards ...

     ///   Christoph Hoelzl
 \\\///    PHONE: (+49) 9901 6394
  \XX/     UUCP : ..cbmvax!cbmehq!cbmger!danube!thibav!choelzl