Lenovo ThinkPad 770 Technical Reference Manual for the ThinkPad 770 - Page 60

Video Subsystem, additional adapters.

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Video Subsystem The video subsystem consists of the XGA video controller and video random-access memory (VRAM). The video subsystem supports an IBM thin-film transistor (TFT) as follows: LCD Type VRAM Size XGA TFT 2 MB Color Depth On the LCD On the External Display 65,536 16,777,216 Resolution On the LCD 1024×768 On the External Display 640×480 800×600 1024×768 1280×1024 1600×1200 The video subsystem also supports PS/2 analog displays without any additional adapters. Note: Use of any video subsystem features not documented in this book can result in future incompatibility. Color 65,536 colors 16,777,216 colors Resolution 640×480 800×600 1024×768 640×480 800×600 3-2 Subsystems

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Video Subsystem
The video subsystem consists of the XGA video controller and video
random-access memory (VRAM).
The video subsystem supports an
IBM thin-film transistor (TFT) as follows:
The video subsystem also supports PS/2 analog displays without any
additional adapters.
Note:
Use of any video subsystem features not documented in this
book can result in future incompatibility.
LCD
Type
VRAM
Size
Color Depth
Resolution
On the
LCD
On the
External
Display
On the
LCD
On the
External
Display
XGA TFT
2 MB
65,536
16,777,216
1024
×
768
640
×
480
800
×
600
1024
×
768
1280
×
1024
1600
×
1200
Color
Resolution
65,536 colors
640
×
480
800
×
600
1024
×
768
16,777,216 colors
640
×
480
800
×
600
3-2
Subsystems