4866LX/T  (250-5144)             VGAMODE               Faxback Doc. # 1199

The VGAMODE.EXE utility enables you to choose one of the video standards
supported by the adapter. Choose from a menu or directly from the MS-DOS
prompt line.

To access the VGAMODE.EXE utility:

1. Turn on your computer.
2. Type:  drive:\path\vgamode

   where drive: and path specify the drive and the directory containing
   VGAMODE.EXE. Then, press ENTER.

3. Use the up and down direction keys on the keyboard to select the desired
   video mode from the VGAMODE.EXE menu. Then, press ENTER.

To exit, choose Exit to DOS and press ENTER.

To bypass the menu, include the desired video option(s) when accessing
VGAMODE.EXE. At the MS-DOS prompt or in a batch file, type the command in the
form:  drive:\path\vgamode [options]

   where options is one or more of the following video options.

* VGA--Selects VGA mode (the default configuration).
* CGA--Selects CGA mode (emulates the video capabilities of the IBM
  Color/Graphics Adapter).
* MDA--Emulates the Hercules Graphics Card with no graphics memory allocated
  (equivalent to IBM's text-only Monochrome Display Adapter).
* HERCO--Emulates the Hercules Graphics Card with one page of graphics 
  memory allocated (equivalent to using the Hercules Graphics Card is HALF
  mode).
* HERC1--Emulates the Hercules Graphics Card with two pages of graphics 
  memory allocated (equivalent to the Hercules Graphics Card in FULL mode).
* COLOR--Sets the video circuitry to color mapping as needed, supporting 
  video modes that require color mapping.
* MONO--Sets the video circuitry to monochrome mapping as needed, supporting
  video modes that use monochrome mapping (such as monochrome text mode).

* 56--Sets the video circuitry to 800 x 600 modes for 56 Hz.
* 60--Sets the video circuitry to 800 x 600 modes for 60 Hz.
* 72--Sets the video circuitry to 800 x 600 modes for 72 Hz.
* 200--Sets the video circuitry to display 200 scan lines.
* 350--Sets the video circuitry to display 350 scan lines.
* 400--Sets the video circuitry to display 400 scan lines.
* 400256--Sets the video circuitry to 640 x 400 resolution in 256 colors.
* 480256--Sets the video circuitry to 800 x 600 resolution in 256 colors.
* 600--Sets the video circuitry to 800 x 600 resolution in 16 colors.
* 768--Sets the video circuitry to 1024 x 768 resolution in 16 colors.
* 600256--Sets the video circuitry to 800 x 600 resolution in 256 colors.
* 13225--Sets 132-column, 25-line color text mode; use only with application
  programs designed to take advantage to Super VGA text capabilities.
* 13243 or 13244--Switches the video circuitry to 132-column, 43 or 44-line
  color text mode; use only with application programs designed to take 
  advantage to Super VGA text capabilities.

* INTERLACE--Sets 1024 x 768 modes as interlaced.
* 60NON-INTERLACE--Sets 1024 x 768 modes as non-interlaced, 60 Hz.
* 70NON-INTERLACE--Sets 1024 x 768 modes as non-interlaced, 70 Hz.
* LOCK--Locks in the current video configuration as the new default
  configuration. This command can be used with another parameter to lock in 
  that particular mode. For example, vgamode cga lock will enable the video
  circuitry to remain configured as a color/graphics adapter even after you
  press [CTRL] + [ALT] + [DEL]. Any specific video mode command will unlock 
  the previous mode of the circuitry.
* REBOOT--Locks and reboots the currently selected video mode so that system 
  re-initializes in current video mode. Can also be used with any parameter 
  to lock that particular mode.

If you have a Mouse:

Changing video modes is often simply a matter of running VGAMODE.EXE and
choosing the desired setting. However, if your mouse driver is installed
through the CONFIG.SYS file or if the mouse is controlled by a program such 
as MOUSE.COM, you might need to restart the computer after choosing a video
mode.

If you have an EMS Adapter:

The VGA 1024 NI Adapter uses memory locations A000-C7FFF, the same memory 
locations as a standard EGA card plus an additional 16KB for the extended 
video BIOS ROM. If you have an EMS (Expanded Memory Specification)adapter, 
that adapter must not conflict with these memory locations. Check with the 
manufacturer of your EMS adapter for information about configuring it for 
use with a VGA-compatible video adapter. You might need to exclude 
locations A0000-C7FFF from use by your EMS driver. Usually, you can 
designate these exclusions when starting your EMS driver.

(jej/tmc-04/24/95)