IBM ThinkPad 755CX, Manual

Page: 181 / 296

Attaching and Replacing an External Display
Attaching an External Display
Note:
When installing an operating
system, you must install the display
driver before you can use the
external display.
The computer can display information on the LCD as follows:
755CX SVGA model supports SVGA (800-by-600 resolution)
video mode and VGA (640-by-480) with 65 536 colors.
755CX VGA model supports only VGA mode with 65 536 colors.
A 1024-by-768 resolution video at maximum can be produced on
any attached external display that supports the resolution mode.
To install the display driver:
Page 188.
Note:
When you use the 755CX SVGA
model and set the display mode to
Both:
Do not attach the external
display that supports only VGA
mode (640-by-480 resolution) to
the computer. Otherwise, the
screen of the external display is
disordered and the output is not
displayed.
The screen image on the
external display may appear
smaller than the actual display
size when you use the DOS
application that supports only
VGA mode.
When you attach an external display, do the following:
1. Change the display mode to CRT or Both. (See “Changing the
Display Mode” on page 166.)
2. Set your monitor type and display device driver. (See “Setting
the Monitor Type and the Display Driver” on page 167.)
3. Attach the external display to the computer. (See “Connecting
the External Display to the Computer” on page 169.)
Chapter 6. Installing and Removing Options
165