Hi Kris,
Thank you for your answer. Is there a way to overrule the sense pins
information via software? If so, I could use Basilisk to produce a boot disk
with the apropriated extension (or whatever) and see if a can force the Mac
into a VGA friendly resolution/frequency.
----- Original Message -----
From: "Kris Jones" <[EMAIL PROTECTED]>
To: "Quadlist" <[EMAIL PROTECTED]>
Sent: Friday, May 07, 2004 6:53 PM
Subject: Re: [q] Mac VGA adapter
> Every 68k Mac with internal video since the LC (except the IIsi) supports
> extended sense codes, which includes a profile for VGA, which is
> [EMAIL PROTECTED] The closest resolution used by Apple was [EMAIL PROTECTED] I
> believe only Composite sync was used on internal video. If you use a nubus
> video card it may output sync-on-green.
>
> I would guess that your adapter just isn't working. If you hook a VGA
> monitor up using the Mac 640x480 profile, it will think it's running at
> 66.7Hz, and the screen will roll. Since it doesn't go away with the other
> settings, I would guess your adapter is broken. Those machines should be
> able to output [EMAIL PROTECTED] just fine if given the correct sense code.
>
> > > Hi,
> > >
> > > I recently received three 68k Macs (IIvx, Centris 650 and Quadra
> >610).
> > > Unfortunatly I dont have any Mac monitor. A friend of mine got me this
> >[...]
> > >
> > > The adapter is aparently made by Samsung. It has lots of dip
switchs
> > > built on it to select the resolucion (I believe I tried all the
> >variations).
> > > The following resolutions are avaiable:
> > >
> > > 640x480 @60Hz
> > > 640x480 @67Hz
> > > 832x634 @75Hz
> > > 1024x768 @75Hz
> > > 1152x870 @75Hz
> > > Multisync 832 (default)
> > > Multisync 1024
> > > Multisync 1152
> > >
> > > I tried the adapter on the builtin monitor port of the three Macs.
> >None
> > > worked. One of them has an offboard video card (Radius?), it didnt
work
> > > either.
> > >
> > > Any idea on what's happening? Is the adapter kaputt? Should I do
> > > something on the Mac or on the monitor to make both work together?
> > >
> > > Thanks in advance,
> > >
> > > Humberto
> >
>
>
>
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