Thank you for your help.
I have XFree86 "working" on the hercules card. It's not that bad.
I used the 50/18.43 values. They work.
The configuration file actually shows a slot for "bandwidth" that I ignored.
Perhaps this be the "total throughput"?
I have tried two different GoldStar monitors. One of them has a distinct
margin of about 1.7 centimeters around the image. It is otherwise crisp.
I haven't tried this monitor with any other OS beside linux, so I don't
know, but then again the other GoldStar has at least a nominally full size
display.
The second GoldStar, apparently a newer one, has as distortion problem, with
letters at the top of the screen at least twice as high as those at the
bottom. There is an adjustment inside, "B+adj". Do you know what that
means? A young electronics student at our school took a look at it, but we
didn't want to try the adjustment until we are sure. (Our high school has a
great three year electronics program---the students travel to other islands
to repair and maintain computers at other schools, and generally do well.)
Thank you again. Very much...
Alan
On Mon, Jul 20, 1998 at 11:16:29AM -0800, David Gillett wrote:
> On 18 Jul 98 at 6:27, Neal Daskal wrote:
>
> > My source is a IBM publication, PC and PS/2 Pocket Reference Manual
> > S41G-5086-00. I quoted from it to try to answer the original question.
> > Of course, it may be wrong even though it's IBM. Wouldn't be the
> > first time. Also note that the value I quoted is described as the
> > "Sync Freq". Could that be different from the scan frequency?
> > Anyway, to add perspective I've added the values given for the
> > IBM Color and Enhanced Color Displays below. I interpret "EGA/CGD"
> > to mean "Enhanced Graphics Adapter set up to use the Color Graphics
> > Display".
> >
> > >On 17 Jul 98 at 12:05, Neal Daskal wrote:
> > >
> > >> 5151 50/16.257khz Mono
> > 5153 60/15.750khz Color
> > 5154 60/15.750khz EGA/CGD
> > 60/21.8khz EGA/EGD
> > >
> > > The PC video FAQ I found shows 18.43kHz horizontal for both MDA and
> > >CGA, but I could've sworn that CGA was 14.something -- in that
> > >awkward range where most men can't hear it, but most women can (and
> > >find it irritating).
>
> So over the weekend I dug out my IBM Technical Reference (revised
> ed, 1984)[*], which confirms the 15.75kHz for the Color monitor (at
> 50 or 60 Hz) -- the web site that showed it as 18.43kHz was
> apparently incorrect.
> But it DOES show 18.43@50 for the Mono Display horizontal scan
> frequency. It shows 16.25MHz (that's MEGA, not KILO) as the total
> "throughput" for the display monitor.
>
> [*] This edition lists three display options: Mono, CGA, and the
> display in the IBM Portable PC.
>
> I am unable to find a spec printed on my mono monitor here, or a
> URL for its manufacturer.
>
> David G
--
Alan E. Davis Marianas High School (Science Department)
AAA196, Box 10001 [log in to unmask] http://www.saipan.netpci.com/~adavis
Saipan, MP 96950 15.16oN 145.7oE GMT+10 Northern Mariana Islands
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