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From: bkliewer@iuvax.cs.indiana.edu (Bradley Dyck Kliewer)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Two Monitors on a PS/2?
Message-ID: <7955@iuvax.cs.indiana.edu>
Date: 16 Apr 88 16:13:52 GMT
References: <206900111@prism>
Reply-To: bkliewer@iuvax.UUCP (Bradley Dyck Kliewer)
Organization: Indiana University CSCI, Bloomington
Lines: 22

In article <206900111@prism> jms@prism.TMC.COM writes:
>
>	Has anybody successfully configured a PS/2 model 50, 60, or 80
>as a two monitor system?  Can the VGA adapter be used to display 
>monochrome text while graphics are displayed from a separate EGA
>adapter?  Thanks in advance.
>

Since the EGA and VGA use the same register addresses, it is unlikey that
you will be able to do this.  The EGA register addresses can be changed,
but you would have to write your own BIOS and anything which writes directly
to the registers (i.e. just about every program) will cause problems.  You
would also need to find an EGA which works in the PS/2.  A better approach 
would be installing a monochrome adapter (assuming you have a color system),
but again, you'll need to find one that works on the PS/2 (I haven't seen
any).

Bradley Dyck Kliewer                Hacking...
bkliewer@iuvax.cs.indiana.edu       It's not just an adventure
                                    It's my job!

Author: EGA/VGA A Programmer's Reference Guide