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From: Michael R. MacFaden
Newsgroups: comp.os.os2.misc,comp.os.os2.programmer
Subject: Re: dual monitors for debugging PM apps on PS/2s
Message-ID: <1991Jun2.192452.21119@ibmpa.awdpa.ibm.com>
Date: 2 Jun 91 19:24:52 GMT
Sender: news@ibmpa.awdpa.ibm.com (News Master)
Organization: IBM PSP Palo Alto, Ca.
Lines: 26

I run this configuration. The 8514/a and display run BGA mode, the 8513 monitor runs
full screen. The trick was to get your config.sys and display.dll set up properly. Believe
me, it is a nightmare if you don't get it right during OS/2 install. (Unix does much cleaner
with good old /etc/ttys thank you).

Here is my config.sys 
   REM * 8514/A w/additional VGA display     
   SET VIDEO_DEVICES=VIO_IBMVGA,VIO_IBM8514A  
   SET VIO_IBMVGA=DEVICE(BVHVGA)             
   SET VIO_IBM8514A=DEVICE(BVH8514A)       
  
I have in my c:\os2\dll has the following display dlls. I think these are all you need, but be careful,
I may not have the complete list...
---A-  Dec  3  19:16:48  1990       7898       8192  bvh8514a.dll  
---A-  Dec 14  12:26:54  1990      32746      32768  bvhvga.dll 
---A-  Dec  3  18:56:32  1990     283856     284672  display.dll
---A-  Dec  3  19:08:28  1990       8116       8192  bvhinit.dll 
---A-  Nov  3  11:45:40  1990       6553       8192  bvhwndw.dll

When I bring up CodeView 3.0, it displays on the VGA monitor. Currently OS/2 PM suffers from the
fact that it can't handle multiple displays like X does, so you get the unique *feature* of
watching one tube's display Freeze while the other has focus. When the VGA has focus,
you have to use CTRL+ESC or terminate the full screen program to switch back to the PM
monitor.

Hope this helps,