Lenovo ThinkPad 600E User's Reference Guide for TP 600 - Page 88

Title: C79EGMST CreationDate: 02/10/98 09:24:42 Attaching an External Monitor 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: 640 x 480 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 or by entering the PS2 HVEXP ON command. However, the image might look slightly distorted. Display Modes 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 Both). Note: When installing an operating system, you must install the display driver supplied with the computer to use SVGA mode. Displaying output on the LCD, or both on the LCD and external monitor (LCD or Both). Resolution 640x480 (VGA) 800x600 (SVGA) 1024x768 (XGA) Supported Color Depth 16, 256, 65 536, and 16 777 216 256, 65 536, and 16 777 216 256 and 65 536 70 IBM ThinkPad 600 User's Reference