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From: beaucham@uxh.cso.uiuc.edu
Newsgroups: comp.sys.ibm.pc
Subject: ATI VGA Wonder question
Message-ID: <19500037@uxh.cso.uiuc.edu>
Date: 25 Oct 89 09:26:41 GMT
Lines: 25
Nf-ID: #N:uxh.cso.uiuc.edu:19500037:000:1457
Nf-From: uxh.cso.uiuc.edu!beaucham    Oct 24 21:38:00 1989


I recently installed an ATI VGA Wonder 512K on my *the original AT*, i.e.,
6 MHz, circa 1984.  I am using it to drive a Princeton MAX-15 autosynchronous
monochrome monitor, which should be able to handle virtually any mode the ATI
can throw at it.  Well, I have the ATI and the MAX-15 working together in a 
serviceable fashion, but I can't get the ATI to "autoswitch", a capablity
which has been advertised.  I have to select Hercules mode (using ATI's
VSETUP) and use just Hercules applications or select VGA mode and use just
VGA applications.  I have reason to suspect that had I been able to select
Multisync in VSETUP, autoswitch would work, but for some reason VSETUP refused
to let me. Also, VSETUP always thinks the display type is PS2 MONO.

The instructions say that I should set the motherboard switch to the "color"
position.  I was careful to do this, as I previously had a Hercules board in
the machine with the switch set to "mono".  The instructions also say to
run SETUP on the PC/AT Diagnostics Disk to define the video card to be EGA.
I tried this, but SETUP refused to let me select anything other than a mono
display.  Later in the manual it says to run the IBM Advanced Diagnostics 
Program which will configure the system for an EGA, the selection for the
VGAWONDER.  This could be important, but so far I haven't found an "Advanced"
diagnostics disk.  

Any ideas what my problem might be?

Jim Beauchamp		beaucham@uxc.cso.uiuc.edu