Windows OS Option

Description

Display

The Display section allows you to use the default settings by checking the Use Default check box or to select the default width, height, color quality, and refresh rate for the configuration.

Disable 3D Support

Specifies whether to enable D3D. The default is to enable 3D support (not checked).

Disable Off-screen Bitmap support (No DFB)

This option turns OFF the driver capabilities to create and use offscreen bitmaps that are used to improve GDI and DirectDraw* performance in the driver. When this option is ON, you may see some GDI and DirectDraw performance degradation. The drv functions below will be affected when this option is turned on.

• DrvCreateDeviceBitmap

• DrvDeleteDeviceBitmap

• DrvDeriveSurface

Disable DXVA H/W Video Decode Acceleration

This option is enabled by default in Intel^® EMGD, however, by selecting this option, you can disable DXVA hardware video decode acceleration.

Enable Frame Buffer Overlay Blending

When checked, this option enables overlay blending with the framebuffer on both display outputs (if in VEXT mode) on US15W and when display mode resolution is 32-bit XRGB. This option is currently not applicable for Atom E6xx.

Enable Frame Buffer Overlay Blending 2D Alpha Override

This option applies only to Windows XP and US15W. When checked, it enables an override to the frame buffer overlay blending 2D alpha.

Note: Checking the Frame Buffer Overlay Blending option and running a 3D alpha blending application on overlay [non full screen mode] causes the black icons on the desktop to appear. This is expected behavior as the operating system sets the 2D alpha values. To overcome this behavior, choose Enable Frame Buffer Overlay Blending 2D Alpha Override option and then enter the alpha value. This alpha override will cause performance impact when a lot of 2D blitting operations take place.

Frame Buffer Overlay Blending Alpha Value

The valid range is from 0x00 to 0xFF.