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B4.0 Display

B4.1 Display Adapters/Chipsets

B4.1.1 Display Adapters/Chipsets - Windows Compatibility

B4.1.1.1 Windows XP/Windows 2000: "Display and Video Miniport Drivers" and "Multiple Monitor Support in the Display Driver" in the Windows DDK

B4.1.1.2 Windows 98/Me: "Display Drivers" and "Multiple Monitor Support Implementation Design Notes" in the Windows Me DDK

B4.1.1.3 OpenGL support (if implemented): "Video Miniport Drivers" in the Windows DDK

B4.1.1.4 Windows compatibility and implementation notes (general)

B4.1.1.5 Windows XP/Windows 2000 Professional: Compatibility Testing Requirements for Display and Video Miniport Drivers

B4.1.1.6 Windows 98/Me: Caution for Display Driver Dependencies on GDI

B4.1.1.7 DirectX: Support per DirectX DDK and the DirectX SDK

Microsoft Platform SDK - http://msdn.microsoft.com/directx/

B4.1.1.8 Onboard graphics device can be used as primary VGA boot device

B4.1.1.9 x86-based graphics adapter with motion compensation or Inverse DCT hardware acceleration uses Microsoft DirectX VA API driver

See Microsoft Platform SDK and the DirectX DDK in the Windows DDK.

B4.1.2 Display Adapters/Chipsets - Industry Standards

B4.1.2.1 Accelerated Graphics Port Interface Specification, Revision 1.0 or later

B4.1.2.2 Digital Video Interface (DVI) Revision 1.0

B4.1.2.3 Display Data Channel Standard, V. 3.0, Level 2B protocols

Video Electronics Standards Association (VESA) BIOS Extension Standard/Core Functions 2.0 (VBE/Core 2.0) at http://www.vesa.org/standards.html.

B4.1.2.4 Display Device Class Power Management Specification, V. 2.0

B4.1.2.5 Ergonomic timings for supported resolutions, based on VESA standards

VESA Computer Display Monitor Timing Specification Version 1.0, Revision 0.8.

Optionally, 59.94 Hz variants of the 60 Hz timings.

B4.1.3 Display Adapters/Chipsets - Quality

B4.1.3.1 Pass WHQL tests

B4.1.4 Display Adapters/Chipsets - Windows Experience

B4.1.4.1 Multiple monitor/multiple display support

B4.1.4.2 Windows XP: DirectX 7 or later driver support for hardware acceleration

• 
  Support CopyFourCC. The graphics adapter driver must correctly implement and act on the COPYFOURCC flag as defined by ddCaps.dwCaps2. The blt function is required to take less than 8 ms and must not be emulated in software.
  
• 
  Properly handle Flip Buffer. The graphics adapter driver must handle YUV surface flipping properly. Specifically, it must be able to cope with either directed or non-directed flips.
  
• 
  Create an RGB overlay as a 3D render target. If the hardware supports an RGB overlay, then the driver must provide the ability to render 3D content to RGB flipping overlay surfaces. All 3D drawing operations must be complete before the flip causes the surface to be visible on the screen.
  
• 
  Support Nonpower of 2 textured surfaces. If the hardware does not support nonpower of 2 textures, then this must be properly reported by the nonpower2 flag. Because Video sizes are rarely powers of 2, there is an additional DirectDraw flag called D3DPTEXTURECAPS_NONPOW2CONDITIONAL that should be set if the hardware supports nonpower of 2 textures for the Clamp addressing mode when not using mip mapping and with D3DRS_WRAP(N) set to zero for the texture co-ordinates.
  
• 
  Support for BLT_FOURCC. It is a requirement to be able to simultaneously do a BLT, stretch/shrink, and a color space conversion from a YUV surface to the current 15, 16, 24, or 32 bit desktop RGB formats.
  
• 
  If the hardware supports YUV textures surfaces and it is reported as such, then the driver must be able to process these without any intermediate transforms and function correctly.
  
• 
  x86-based system: Output of the DirectX VA MPEG acceleration process must be available as an input to the VMR renderer. This can either be in the form of a Direct3D texture or as an input to the color conversion BLTer.
  

B4.1.4.3 If digital video interface is supported, implementation follows Digital Visual Interface 1.0

B4.1.4.4 Adapter supports minimum screen resolution

Minimum resolution is 1024 × 768 × 32 bpp, double buffered in both 2-D and 3-D modes with a 32-bit Z-buffer in 3-D mode.

Adapter meets VESA specifications for ergonomic timing rates (optionally, 59.94 Hz variants of the 60 Hz timings); screen resolution and local memory capacity meet minimum requirements.

After July 1, 2002, integrated solutions must support this minimum requirement; until July 1, 2002, integrated solutions can have a minimum screen resolution of 1024 × 768 at a color depth of 24 bpp for 2-D, and 1024 × 768 at a color depth of 16 bpp with a 16-bit Z-buffer in 3-D mode.

B4.1.4.5 Color support

• 
  All supported color depths are enumerated. [GRPH-0170]
  
• 
  Adapter supports gamma correction performed in hardware at 24 bpp or 32 bpp without using VGA resources. [GRPH-0178]
  
• 
  Driver supports dynamic color bit-depth change. [GRPH-0206]
  
• 
  Graphics adapter operates properly and does not fail when Windows requests that it change the color depth or resolution; a restart must not be required to accomplish this. [GRPH-0206]
  

B4.1.4.6 Device configuration and detection requirements

• 
  Graphics operations use relocatable registers only. [GRPH-0171]
  
• 
  Primary graphics adapter works normally with default VGA mode driver. [GRPH-0166; SDG3:75, 76]
  
• 
  Driver does not bypass any Microsoft-provided system components. [GRPH-0205; see FAQ B4.1.5.4]
  
• 
  Adapter supports DDC monitor detection, and option ROM supports VESA Enhanced Display Data Channel Standard (EDDC), Version 1.0, Level 2B protocols (DDC2B). [GRPH-0179
  

• 
  Frame buffer can be accessed directly by applications. [GRPH-0182]
  
• 
  System supports conflict resolution, VGA compatibility, and extended registers. [GRPH-0196]
  
• 
  BIOS supports large frame buffers for graphics adapters. [GRPH-0200]
  
• 
  Graphics adapter complies with VESA BIOS Extensions/Core 2.0 extensions for power management. [GRPH-0204]
  

B4.1.4.7 Basic 2-D hardware acceleration requirements

• 
  Hardware supports transparent blter. [GRPH-0183]
  
• 
  Hardware provides support to prevent tearing. [GRPH-0184]
  
• 
  Chips support linear packed-pixel frame buffer, relocatable above 16 MB. [GRPH-0197]
  

B4.1.4.8 Adapter supports hardware-accelerated 3-D graphics

Including these additional 3-D requirements for hardware support:

• 
  Multi-texturing. [GRPH-0186]
  
• 
  Source alpha blending and destination alpha blending; required texture size increases to 1024×1024 for all texture operations. [GRPH-0185, GRPH-0188]
  

• 
  Texture format 8:8:8:8 alpha RGB (ARGB). [GRPH-0187]
  

• 
  Z comparison modes and Direct3D-compatible formats. [GRPH 0189]
  
• 
  Fog blending term is calculated on a per-pixel basis rather than per vertex, and is either range-based (range-based fog) or depth-based (pixel fog).
  

After July 1, 2002, integrated solutions must support per-pixel fog; until January 1, 2002, integrated solutions can implement only per-vertex fog.

After July 1, 2002, integrated solutions must support MODULATEALPHA texture combinations.

Also, multitexture support with fogging and alpha blending are not required.

B4.1.4.9 Graphics adapter uses PCI, AGP, or another high-speed bus

• 
  Equivalent of AGP 2X required for discrete solutions; AGP 1X or equivalent required for integrated solutions. [GRPH-0163]
  
• 
  PCI device supports IRQ and correctly populates PCI BARs. [GRPH-0201]
  
• 
  PCI system-board graphics device PCI configuration space must be visible to the Plug and Play enumeration software. [GRPH-0202; see also FAQ B4.1.5.7]
  

B4.1.4.10 TV output capability, if present, meets requirements

• 
  Adapter supports underscan scaling. [GRPH-0190]
  

• 
  Adapter supports flicker filter and is required to take a 1024 x 768 32-bpp input and downscale it to the TV out resolution (NTSC or PAL). [GRPH-0192]
  
• 
  Adapter with television output supports both 1024 x 768 at 32 bpp VGA and television output simultaneously. [GRPH-0194]
  
• 
  Software supports positioning. [GRPH-0191]
  

B4.1.4.11 Graphics subsystem support for TV or DVD-Video playback, if present, meets performance requirements

For the adapter to achieve the required performance when rendering Line21, the DDCAPS_CANBLTSYSMEM cap needs to be set in the display adapter.

B4.1.4.12 Graphics adapter driver properly supports D3 state such that Windows can hibernate and restore the system from any system-supported sleep state

B4.1.4.13 Mobile PC system meets basic graphics requirements to reliably run Windows and applications, plus requirements for resolution capabilities

B4.1.4.14 Mobile PC system 3-D capabilities, if implemented, meet minimum requirements

B4.1.5 Display Adapters/Chipsets - FAQs

B4.1.5.1 Current Display FAQs

B4.1.5.2 DDC/EDID Standards [Clarification]

The required support defined in Version 3.0 of the DDC and Extended Display Identification Data (EDID) standards is also defined in the earlier version and revisions of these standards. As such, the Version 3.0 standards provide the correct references for Windows XP/Windows 2000 and Windows 98/Me.

B4.1.5.3 Mobile PC system supports minimum +5V power requirements [Clarification]

Some display devices rely on the +5V to power their DDC circuitry, for Plug and Play detection, or both. It is recommended that a mobile PC provide a means to enable the +5V power when necessary.

B4.1.5.4 Shrink and zoom requirements [Revision]

TV and DVD playback requirements are defined in B4.1.4.11.

B4.1.5.5 Color/color range requirements [Revision]

TV and DVD playback requirements are defined in B4.1.4.11.

B4.1.5.6 Source alpha blending requirement [Revision]

3-D graphics requirements are defined in B4.1.4.8.

B4.1.5.7 Integrated devices must support multiple monitors [Clarification]

B4.1.R Display Adapters/Chipsets - Future Requirements