PRB: VGA Monitor Loses Sync on 8514 Dual Monitor System (81704)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
This article was previously published under Q81704 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
| Modification Type: | Major | Last Reviewed: | 11/6/1999 |
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| Keywords: | KB81704 |
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