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Q81704: PRB: VGA Monitor Loses Sync on 8514 Dual Monitor System

Article: Q81704
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.1
Operating System(s): 
Keyword(s): 
Last Modified: 06-NOV-1999

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.1 
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SYMPTOMS
========

On a system equipped with both an 8514 and a VGA monitor, when the user uses
ALT+ENTER to switch the display from a full screen MS-DOS prompt to a windowed
MS-DOS prompt, the VGA monitor loses synchronization.

CAUSE
=====

Windows does not change the settings for the registers of the VGA card.

RESOLUTION
==========

Load the ANSI.SYS device driver by adding the following line to CONFIG.SYS:

  device=c:\dos\ansi.sys

Then, place a command into the WINSTART.BAT file to initialize the settings of
the VGA card as Windows starts. Create or modify a WINSTART.BAT in the Windows
directory (by default, C:\WINDOWS). To place the VGA monitor into 50-line mode,
add the following line to the WINSTART.BAT file:

  @MODE 80,50

To place the monitor into 25 line mode, add the following line to the
WINSTART.BAT file:

  @MODE 80,25

Additional query words: 3.10

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Keywords          :  
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310
Version           : WINDOWS:3.1

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