VESA

视频电子标准协会（Video Electronics Standards Association, VESA）是由代表来自世界各地的、享有投票权利的140多家成员公司的董事会领导的非盈利国际组织，总部设立于加利福尼亚州的Milpitas，自1989年创立以来，一直致力于制订并推广显示相关标准。

视频电子标准协会（Video Electronics Standards Association, VESA）是由代表来自世界各地的、享有投票权利的140多家成员公司的董事会领导的非盈利国际组织，总部设立于加利福尼亚州的Milpitas，自1989年创立以来，一直致力于制订并推广显示相关标准。

VESA总线(Vedio Electronic Standard Association)是一个32位标准的计算机局部总线，是针对多媒体PC要求高速传送活动图象的大量数据应运而生的。它的数据传输率最高可达132Mbytes/s。它的许多引线引自CPU，因而负载能力相对较差。随着Pentium级计算机的不断普及，PCI总线产品所占的市场份额日渐提高，VESA总线产品将面临被淘汰的趋势。

 

• DisplayPort：显示设备端口，是数字显示设备图像和声音接口的标准化格式。
• VESA Local Bus（VLB）：是PCI(Peripheral Component Interconnect)出现之前，为统一各生产厂家而制定的总线标准。
• VESA BIOS Extensions（VBE）：VESA BIOS扩展，有关分辨率的标准。
• VESA Display Data Channel（DDC）：显示器向计算机显卡发送的可用分辨率的数据标准。
• VESA Display Power Management Signaling（DPMS）：显示器省电模式标准。
• VESA Media Channel（VMC）：规定图形卡和视频卡的接口。

 

NOTE: To use the Advanced Timing page, you must be an advanced user and familiar with the concepts of display timing standards and parameters. If you are not familiar, it is recommended that you do not use this control panel.

The Advanced Timing page provides end users the ability to adjust timings for their graphics card in order to support a variety of different display timings for ultimate flexibility for analog CRT and DVI connections. 

The Advanced Timing page—accessed from the NVIDIA Display Properties Change Resolution page—is not available for some cards using the DVI connector. DVI timing adjustment is supported on GeForce FX, Quadro FX, and GeForce 6 series based cards only if they use an external TMDS device, such as the SiliconImage 164/1162*. If the card uses the internal TMDS, then the page is not accessible. 

The different modes that Advanced Timing allows end users to select are:

• Electronic Industries Alliance (EIA-861B) refers to a CEA/EIA standard which consists of display timing and formats supported by Digital Televisions
• Generalized Timing Formula (GTF) is a method of generating industry standard timings used by a wide variety of display products
• Display Monitor Timings (DMT) are a list of VESA standard pre-defined timings which are commonly used within the Computer industry.
• Coordinated Video Timings (CVT) were released on March 2003 as the newest VESA standard for generating display timings
• Coordinated Video Timings-Reduced Blanking (CVT-RB) is geared specifically for non-CRT display devices. CVT-RB offers reduced horizontal and vertical blanking periods and allows a lower pixel clock rate and higher frame rates.
• EDID Timing is the preferred timing standard defined by the display's Extended Display Identification Data (EDID) value. EDID is a standard data structure that defines the display device's configuration data and mode support which allows optimum use of the display

EIA-861B timings are an exciting standard since they allow the graphics card to now connect to Consumer Digital Televisions over a DVI connection and configure itself for the optimum settings of that display.