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From: silver@eniac.seas.upenn.edu (Andy Silverman)
Newsgroups: comp.sys.ibm.pc
Subject: Re: OS/2 and 8514
Message-ID: <17365@netnews.upenn.edu>
Date: 28 Nov 89 03:58:04 GMT
References: <20007@acf4.NYU.EDU>
Sender: news@netnews.upenn.edu
Reply-To: silver@eniac.seas.upenn.edu.UUCP (Andy Silverman)
Organization: University of Pennsylvania
Lines: 40

In article <20007@acf4.NYU.EDU> chapman@acf4.NYU.EDU (Gary W. Chapman) writes:
>We have OS2 1.1 running on an IBM Model 60 with and 8514 video adapter
>board.  The monitor is the large-screen 8507.  Everything is working
>fine, but at VGA resolution.  Does anyone how to run Presentation Manager
>in higher resolution with this board?
>
>  - Gary Chapman, Academic Computing Facility, New York University
>    chapman@nyu.edu

It is necessary to change a few things, if I remember correctly.
1) Do you have the memory expansion kit for the 8514/A adapter? If the
   board isn't fully populated you can't use the higher resolution mode in
   OS/2.  If so, I assume the jumper is already set correctly.
2) In your CONFIG.SYS, change the line which reads DEVINFO=SCR,VGA to read
   DEVINFO=SCR,BGA.
3) (Here's the tricky part!) You must boot under DOS, or lacking that, boot
   the original OS/2 installation diskette, and hit Esc to get out of the
   program to a OS/2 prompt.  Change the directory to OS2\SYSTEM.  I think
   that's the right one.  Anyway, if not this one then find the OS2\xxx
   directory that has DISPLAY.DLL in it.  There should also be in the same
   directory a file called IBMBGA.DLL.  Do this:
   COPY IBMBGA.DLL DISPLAY.DLL
   DISPLAY.DLL has all the OS/2 video routines in it, and the installation
   program automatically figures out which one to use.  Of course, if you then
   change things you have to fix this DLL manually as above.  The reason you
   can't boot under OS/2 as normal to do this is because once it boots then
   DISPLAY.DLL will be open and the system won't allow you to overwrite it.
   Hence this roundabout procedure.  This is the way IBM actually recommends
   you do it, the information is buried deep somewhere in one of those
   manuals that comes with OS/2.  Not being able to overwrite DLL's, while
   necessary, is probably my biggest single gripe about OS/2.

   Hope this helps.

   Andy
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| Andy Silverman        | Internet:   silver@eniac.seas.upenn.edu |
| "All stressed out and | Compu$erve: 72261,531                   |
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