[comp.sys.ibm.pc.hardware] Compatible VGA card ?

psrc@pegasus.ATT.COM (Paul S. R. Chisholm) (06/27/90)

In article <2309@nisca.ircc.ohio-state.edu> barthe@hpuxa.ircc.ohio-state.edu (Olivier Barthelemy) writes:
>I am looking for a VGA or better graphics card that will let me use 
>CGA and/or Hercules MONITORS. I does of course also have to offer Hercules
>and CGA modes.

There are (or were) cards that tried looked to the software like
high-res combinations, and sent a pretty-good image to the monitor.
This was easier in CGA/EGA days.

Top ten reasons you can't use a CGA monitor for VGA graphics:

10)  Nowhere near the resolution you want.  It's fixed by the monitor
frequency, and some other stuff.

9)  Editors from PC Magazine will come to your house and laugh at
you.

8)  Limited palette.  CGA monitor has only four bits per pixel, so only
sixteen colors possible (even if you've got enough memory to store all
those possibilities, e.g., EGA card with CGA monitors are pretty good
for games).  You can't get 256 colors from a palette of 64K; you can't
even get seventeen.  Even worse for monochrome; instead of having sixty
four shades of gray, you only get two.

7)  Unmatched hardware will generate funny radiation, causing you to
(a) go blind but be very acrobatic (if you're currently human), (b)
grow much large than normal, be able to speak, encourage mastery of
nijitsu, and make you want to eat Domino's(R) pizza.

6)  The signal put out by an VGA card is much higher than what a CGA or
MGA monitor can handle.

5)  Computer will be insulted by what you've installed in it, will
execute HCF instruction (Halt and Catch Fire).

4)  If you could get something, it's likely to be so blurry, you'll go
blind trying to read it, and not even become acrobatic.

3)  There is no reason 3.

2)  No Microsoft Windows 3.0 video driver

And the number one reason you can't use a CGA monitor for VGA graphics:

1)  I forget.

>Olivier Barthelemy		barthe@hpuxa.ircc.ohio-state.edu

Paul S. R. Chisholm, AT&T Bell Laboratories
att!pegasus!psrc, psrc@pegasus.att.com, AT&T Mail !psrchisholm
I'm not speaking for the company, I'm just speaking my mind.

(So some of my odd-numbered reasons are . . . well, odd.-)

barthe@hpuxa.ircc.ohio-state.edu (Olivier Barthelemy) (06/27/90)

Hi again. 

I perfectly realize that I will only get CGA resolution on a CGA monitor.
The question is : is there any VGA card with CGA emulation AND a plug
for a CGA monitor ?

(Reason for wanting to do that : I'm going to be in France for a couple of
months later this year. Buying a VGA monitor for 2 months seems overkill,
so I'd like to be able to have a CGA screen waiting for me in France
and my regular VGA screen in the US)>

Thanks		Olivier Barthelemy
		barthe@hpuxa.ircc.ohio-state.edu

wallwey@snoopy.Colorado.EDU (WALLWEY DEAN WILLIAM) (06/28/90)

In article <2371@nisca.ircc.ohio-state.edu> barthe@hpuxa.ircc.ohio-state.edu (Olivier Barthelemy) writes:
>Hi again. 
>
>I perfectly realize that I will only get CGA resolution on a CGA monitor.
>The question is : is there any VGA card with CGA emulation AND a plug
>for a CGA monitor ?
>
>Thanks		Olivier Barthelemy
>		barthe@hpuxa.ircc.ohio-state.edu

I beleive both the Logos Platinum VGA (sp?) (mentioned in a previous post)
and the Logixs (sp?) which can be found
in the Computer Shopper have both an analog(SVGA and VGA) and a digital
(EGA, CGA, MDA, Herc.) compatible connector.  You should probably double
check, but I think these will fit the bill!

-Dean Wallwey

jm21@prism.gatech.EDU (Jim Marks) (06/28/90)

In article <2371@nisca.ircc.ohio-state.edu> barthe@hpuxa.ircc.ohio-state.edu (Olivier Barthelemy) writes:
>Hi again. 
>
>I perfectly realize that I will only get CGA resolution on a CGA monitor.
>The question is : is there any VGA card with CGA emulation AND a plug
>for a CGA monitor ?
>

The VGA card I recently purchased has this.  It's the VIP (VGA Improved
Performance) VGA card from ATI Technologies, Inc.  It haven't tried it
with a CGA monitor (I don't have one), but it has a 15-pin plug for
an analog VGA monitor AND a 9-pin plug for a TTL monitor (CGA or monochrome).
I did hook up my monochrome monitor with it and it worked fine.
-- 
Jim Marks   		   | Georgia Tech Research Institute
Compuserve: 72310,2410     | Concepts Analysis Laboratory (as of 7/1/90)
Internet:   jm21@prism.gatech.edu -or- jmarks@gtri01.gatech.edu