Lenovo ThinkPad i Series 1124 ThinkPad 240 User's Reference that shipped with - Page 77

Display modes, Important, The DOS Screen Image on the LCD, Screen Expansion, External Display

Page 77 highlights

Attaching an external monitor Important Do not disconnect the external monitor while the computer is in suspend mode or hibernation mode. If no external monitor is attached when the computer resumes, the LCD remains blank and output is not displayed. This restriction does not depend on the resolution value. The DOS Screen Image on the LCD If you use a DOS application that supports only VGA mode (640x480 resolution) with your computer, the screen image might appear smaller than the display size, as shown: This is to maintain compatibility with DOS applications. To expand the screen image to the same size as the actual screen, you can use the screen expansion function. You can expand the screen image by clicking on the LCD button ( ) in the ThinkPad Configuration program and enabling the radio button for Screen Expansion and clicking on OK. However, the image might look slightly distorted. Display modes The ThinkPad 240 computer has an LCD that supports SVGA (800x600 resolution) video mode. The following table shows the various display modes (resolution and color depth) available with your computer or external monitor. Use this table to set the display output (LCD, External Display or LCD+External Display). Note: When installing an operating system, you must install the display driver supplied with the computer to use SVGA mode. Chapter 2. Extending the features of your computer 65

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Attaching an external monitor
Important
Do not disconnect the external monitor while the computer is in
suspend mode or hibernation mode. If no external monitor is
attached when the computer resumes, the LCD remains blank
and output is not displayed. This restriction does not depend on
the resolution value.
The DOS Screen Image on the LCD
If you use a DOS application that supports only VGA mode (640x480
resolution) with your computer, the screen image might appear
smaller than the display size, as shown:
This is to maintain compatibility with DOS applications. To expand
the screen image to the same size as the actual screen, you can use
the
screen expansion
function. You can expand the screen image by
clicking on the LCD button (
) in the ThinkPad Configuration
program and enabling the radio button for
Screen Expansion
and
clicking on
OK
. However, the image might look slightly distorted.
Display modes
The ThinkPad 240 computer has an LCD that supports SVGA
(800x600 resolution) video mode. The following table shows the
various display modes (resolution and color depth) available with
your computer or external monitor.
Use this table to set the display
output (
LCD
,
External Display
or
LCD+External Display
).
Note:
When installing an operating system, you must install the
display driver supplied with the computer to use SVGA mode.
Chapter 2.
Extending the features of your computer
65