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DualDisplay=<Boolean>
Default: See "Purpose."
Purpose: Normally, when running in 386 enhanced mode, the memory
between B000:0000 and B7FF:000F is used by the general
system unless a secondary display is detected. Enable this
setting if you are using a VGA-based color display and want
EMM386.EXE to include this address space as an upper memory
block (UMB). In addition to enabling this setting, you must
include the i= option in the device=EMM386.EXE command line
in your CONFIG.SYS file as follows:
device=EMM386.EXE i=B000-B7FF
If this setting is disabled, the address range is available
on EGA systems, but not on VGA systems, because the VGA
display device supports monochrome modes, which use this
address space.
To Change: Use Notepad to edit the SYSTEM.INI file. |