Dual-Monitor Requires 8-Bit Data Paths for Both Monitors (51870)
The information in this article applies to:
- Microsoft CodeView for MS-DOS 2.2
- Microsoft CodeView for MS-DOS 3.0
- Microsoft CodeView for MS-DOS 3.11
- Microsoft CodeView for MS-DOS 3.14
- Microsoft CodeView for MS-DOS 4.0
- Microsoft CodeView for MS-DOS 4.01
- Microsoft CodeView for MS-DOS 4.05
- Microsoft CodeView for MS-DOS 4.1
- Microsoft CodeView for Windows 3.0
- Microsoft CodeView for Windows 3.05
- Microsoft CodeView for Windows 3.06
- Microsoft CodeView for Windows 3.07
- Microsoft CodeView for Windows 4.0
- Microsoft CodeView for Windows 4.01
- Microsoft CodeView for Windows 4.1
This article was previously published under Q51870 SUMMARY
When you configure a system for dual-monitor debugging, verify that
both the monochrome monitor and the color monitor use an 8-bit data
path. Any dual-monitor write scheme requires a common data path to
each display card (either both 8-bit or both 16-bit). Monochrome
adapters available today use an 8-bit path exclusively.
Many display cards that support 16-bit mode automatically sense that
they are addressed in a dual-monitor mode. However, some cards, such
as the ATI VGA Wonder card, do not sense this situation. You must
manually configure these cards to use an 8-bit data path.
MORE INFORMATION
If you use dual monitors and experience strange behavior, such as
random or blinking characters on the monochrome screen, verify that
your 16-bit color video card is running in 8-bit mode.
The most common use for a dual-monitor setup is to debug a graphics
application with CodeView.
| Modification Type: | Major | Last Reviewed: | 10/23/2003 |
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| Keywords: | kb16bitonly kbBug kbDebug KB51870 |
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