Q70916: Screen Garbage on Tandon Laptop 386, VGA, QBasic Mode 13

Article: Q70916
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:5.x,6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 
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SYMPTOMS
========

When you use the MS-DOS version 5.0 or later QBasic SCREEN command to set the
screen to mode 13 (320 x 200, 256-color resolution) on a Tandon Laptop 386 with
a VGA card, meaningless characters may appear on the screen. When running in
this mode, the VGA card ignores requests to set colors; therefore, anything
displayed on the screen appears in unpredictable colors.

CAUSE
=====

This behavior is caused by a problem in the VGA card itself, not the machine,
monitor, or Qbasic.

The products included here are manufactured by vendors independent of Microsoft;
we make no warranty, implied or otherwise, regarding these products' performance
or reliability.

Additional query words: 6.22 5.00 5.00a 6.00 6.20 hardware 3rdparty

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS500a
Version           : MS-DOS:5.x,6.0,6.2,6.21,6.22

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