Re: Problem PCT With ZipGS

["Bryan Parkoff" <BParkoff@satx.rr.com>]

Yes, I use ColorSwitch and it causes PCT to scroll and/or scramble video
controller.  It works fine with native IIgs, but not through PCT.  I tried
two different ColorSwitch boards.

--
Yours Truly,

Bryan Parkoff
BParkoff@satx.rr.com
"David Empson" <dempson@actrix.gen.nz> wrote in message
1fbys3y.l9zti84hgw4N%dempson@actrix.gen.nz">news:1fbys3y.l9zti84hgw4N%dempson@actrix.gen.nz...
> Bryan Parkoff <BParkoff@satx.rr.com> wrote:
>
> >     PC Transporter works fine with TransWarp GS on Apple IIgs
motherboard
> > ROM 01.  If I install ZipGS instead of TransWarp GS while running PC
> > Transporter, it causes the screen to scroll up/down and scramble.
>
> This is the PC Transporter's video output which is misbehaving?
>
> Which method are you using to get video out of the PC Transporter?
> (Composite, CGA digital video, or Analog RGB via the ColorSwitch card)
>
> What are the specifications of your ZipGS (CPU speed, cache
> configuration)?
>
> > I tried two different ZipGS cards, but it remains the same.  I did
disable
> > cache and speed to slow (not accelerate).  It does not resolve the
> > problems.
>
> I don't know what is happening here, but it isn't a general
> incompatibility - my IIgs (ROM 3) has both a ZipGS and PC Transporter,
> and a friend also had the same combination, and neither of us ever saw a
> problem like the one you describe.
>
> I forget whether I got my PC Transporter while I was still using a ROM 1
> IIgs (which also had a ZipGS), but it is quite likely.
>
> >     Do you have idea what is wrong with ZipGS?  I did diagnostic that it
> > shows Bad System.
>
> If the ZipGS is enabled, certain system tests will always fail (the
> timing is wrong).  Disabling the Zip (with the appropriate DIP switch)
> should allow the tests to pass.
>
> --
> David Empson
> dempson@actrix.gen.nz
>