Flat Panel Support; Crt; 2D Acceleration - Compaq Armada e500 Series Reference Manual

Flat Panel Support

The RAGE Mobility-P can provide support for different flat panels. The Armada E500
supports a 14.1- or 15.1-inch XGA, TFT (1024 × 768) display, using the low voltage
differential signaling (LVDS) interface. The Armada V300 supports a 12.1-inch SVGA,
STN (800 x 600) CMOS display or a 14.1-inch XGA, TFT (800 x 600) LVDS display.
Both computers also support a 12.1-inch SVGA, TFT (800 x 600) LVDS display.

CRT

The RAGE Mobility-P supports high-resolution variable frequency analog monitors in
interlaced and non-interlaced modes of operation. Other than color depth, the modes
supported by the Mobility-P apply to both the LCD and the CRT. The exception to this
is the 1280 × 1024 and 1600 × 1200 modes, which are supported for the CRT only.
The external video interface is capable of supporting all VGA-compatible monitors with
a horizontal scan frequency of 31.49 KHz and a vertical refresh rate of 60 to 100 Hertz.
The external video signals are analog RGB at 0 to +0.714 volts full scale, with zero
volts representing black. Output impedance is 75 ohms. The color DAC is powered by
Vcc at 5 volts.
When an external monitor is attached, the video circuit detects the type of monitor
(monochrome or color) present using the analog voltage comparator method, and
automatically configures itself for the proper operating mode. This same method is used
to determine if a monitor is present during a resume operation.
The DDC (display data channel) 2B specification is also supported. This uses an I
interface to determine a CRT monitor's capabilities.

2D Acceleration

The RAGE Mobility-P has built-in 2D video acceleration including the following:
Hardware acceleration of Bit-BLT, line draw, polygon/rectangle fill, bit masking,
monochrome expansion, panning/scrolling, and scissoring
Hardware cursor support (up to 64 × 64 pixels × 2 colors)
Game acceleration with support for the Microsoft's DirectDraw–double buffering,
virtual sprites, masked BLT, transparent BLT, and context chaining
Acceleration in 8, 16, 24, 32 bit per pixel modes
7-4 Video/Graphics Subsystem
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