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Topic: VESA Display Data Channel

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	c't 11/99, page 220 - Which interface for digital displays?
		And the VESA Display Data Channel (DDC) is also used for identifying the monitor under Windows.
		Data transfer per TMDS: A PanelLink transmitter resides on the graphics card, the receiver is in the display.
		The symmetrical TMDS channels between PC and display have a maximum direct current voltage swing of ± 500 mV; the current reaches a maximum of 12 mA per wire.
	www.heise.de /ct/english/99/11/220 (1931 words)

	VESA Display Data Channel - Wikipedia, the free encyclopedia
		VESA Display Data Channel (or DDC) is a VESA standard that defines how to read certain pins in a standard SVGA monitor to query the monitor's capabilities.
		ID1 was now used as the data pin from the I²C bus, and the formerly unused pin 15 became the I
		The data itself was in the same format as the earlier DDC, so changes to the computer-side drivers were minimal.
	en.wikipedia.org /wiki/VESA_Display_Data_Channel (398 words)

	VESA
		VESA Local Bus (VLB), used at one time as a fast video bus (akin to the modern AGP).
		VESA Display Data Channel (DDC), allowing monitors to identify themselves to the video boards they're attached to.
		VESA Display Power Management Signaling, which allows monitors to be queried on the types of power saving modes they support
	www.ebroadcast.com.au /lookup/encyclopedia/ve/VESA.html (122 words)

	Display Data Channel - Wikipedia, the free encyclopedia
		The Display Data Channel or DDC is a digital connection between a computer display and a graphics adapter that allows the display to communicate its specifications to the adapter.
		The DDC link is carried on three pins – data, clock and ground – in a 15-pin VGA connector, a DVI connector or an HDMI connector.
		The data in the monitor's ROM is held in a standard format called EDID (for Extended Display Information Data).
	en.wikipedia.org /wiki/Display_Data_Channel (331 words)

	Sci.Electronics.Repair FAQ: Notes on the Troubleshooting and Repair of Computer and Video Monitors
		In a CRT display, the CRT itself is usually the limiting factor in this, and in THAT specific case we usually speak of "mean time to half-bright" instead, since it's rare for a CRT to simply die once it's past its early operating life.
		Recent display timing standards have all been written specifying positive-polarity sync (the sync pulse is at logical "1" rather than "0"), but the use of negative polarity usually won't do anything except possibly cause the image to be off-center by the width of the sync pulse.
		Display a lively screen on your PC at a resolution you know the monitor should support (remember, trying to drive a monitor of unknown scan rate specifications beyond its ratings is like playing Russian Roulette.) When in doubt, VGA (640x480, 31.4 KHz H, 60 Hz V) should be safe.
	repairfaq.ece.drexel.edu /REPAIR/F_monfaqf.html (5079 words)

	Portrait Displays, Inc. - Software Managed Displays White Paper
		Displays are viewed as an investment to the overall computing solution, and require the same attention and management as all other capital assets.
		The display’s image will be put into a mode that is less desirable, such as inverting the color ramps or placing the display into gray scale only.
		Rendering the display inoperable lends itself to electronic signage where the owner wants the display to have no use or minimal resale value if it is stolen.
	www.portrait.com /jp/products/dt_managed_displays.html (2259 words)

	[No title] (Site not responding. Last check: )
		One display controller would be used for VGA compatibility, and the other used for graphic extensions to the basic VGA modes, resolutions, and frame buffer models.
		VESA is in the process of standardizing a mechanism by which the display controller can automatically determine the capabilities of the installed display monitor.
		If the VESA Display Data Channel capability is absent, the display controller manufacturer must provide a configuration utility, or other suitable process, to select the best available timing for each mode.
	thorkildsen.no /faqsys/docs/vesa20.txt (16227 words)

	FAQs - Fusion 900 Display
		The workstation where you want to display your application must be specified by either the -display command line option or by setting the DISPLAY variable in your shell environment.
		If your display devices are the standard VGA type displays, using the HD15 connector, you will need to use the supplied adapters.
		This feature is achieved by the display adapter communicating with the display device using the VESA Display Data Channel (DDC) and the Extended Display Identification Data (EDID).
	www.jupiter.com /Support/FAQs/FAQs900-Display-Linux.htm (827 words)

	VESA
		The VESA DisplayPort Task Group is also working to complete a compliance and interoperability program for DisplayPort connectors, cables and devices to ensure functional compatibility between DisplayPort products.
		VESA has selected four internationally-known organizations – Allion Computer, Contech Research, ETC, and NTS – to manage the testing.
		The process will be as convenient and easy as possible, with the initial VESA Workshop/PlugTest now tentatively scheduled for December, and quarterly PlugTests to be conducted throughout 2007, according to Bill Lempesis, executive director.
	www.vesa.org (405 words)

	VESA DisplayPort Standard v1.0
		The specification is scalable and extensible in terms of pixel depth, resolution, data types, and number of streams.
		The HDMI specification is not geared to unifying internal and external display connections; its primary focus is consumer electronics.
		The Auxiliary Channel is characterized by consistent bandwidth, low latency, and is bi-directional.
	www.audioholics.com /techtips/specsformats/VESADisplayPort.php (589 words)

	[No title]
		VESA Display Data Channel is a method for integrating digital interface to VGA conenctor to be able the monitor and grapahics card to communicate.
		The bidirectional data bus is a syncronous data bus similar to Access Bus and is based on I2C technology.
		VESA has defined a standard method for computer to tell monitor when to go to power saving mode.
	www.epanorama.net /documents/pc/vga_bd15.html (604 words)

	[No title]
		The identification data structure returned by the monitor, if any, is stored in the Windows 95 system “registry” for later use by display drivers and utilities.
		In the Display control panel, users can change to a more specific monitor type by selecting from the list of supported monitors, or using a Windows 95 configuration disk supplied by the monitor mfg.
		The Windows 95 set of display drivers are designed to be as generic as possible, so that they run well across as many OEM implementions of a particular controller as possible.
	www-pc.uni-regensburg.de /systemsw/TECHTOOL/w95/doc/win95ddc.doc (2030 words)

	Xerox LCD Monitors \| Customer Support \| Frequently Asked Questions
		If your display adapter and driver support DDC monitors the monitor will be automatically detected and installed as a "VESA DDC compatible monitor" by Windows 95/98/2000/ME/XP at startup.
		Xerox Displays monitors supports Windows XP OS, the reason why your monitor flicker maybe caused by refresh rate of your monitor that was set too low.
		When TVs display video, they display a new video frame at a rate that is faster than your eye can see (from 24 to 60 frames per second, depending on the TV and broadcast).
	www.xerox-displays.com /test/faq.html (1868 words)

	VESA completes DVI successor \| Reg Hardware
		The Video Electronics Standards Association (VESA) has unwrapped the final version of DisplayPort, the monitor interconnect it hopes will succeed DVI by adding HD audio as well as picture signals, and support for higher resolutions and refresh rates than are available today.
		DisplayPort is designed to support both internal and external display connections - VESA is hoping notebook vendors will use it not only for supporting separate monitors but to connect the LCD to the motherboard, facilitating easier upgrades.
		VESA said data is transmitted across the DisplayPort interface using a "micro-packetised" format the better, it claimed, to future-proof the interface.
	www.reghardware.co.uk /2006/05/04/vesa_completes_displayport (458 words)

	Argecy: Terminals, Displays and Thin Clients - IBM - Monitors - IBM 6555-773 P200 Color Monitor (Site not responding. Last check: )
		The on-screen displays also show the horizontal frequency (line rate) and vertical frequency (refresh rate) for the current display mode when you adjust the brightness or contrast.
		On-screen display of the horizontal and vertical frequencies in use for the current display mode.
		The frequencies are shown in the On-Screen Displays that appear whenever the brightness or contrast are adjusted.
	www.argecy.com /index.php?pfile=6555-773.html (712 words)

	Industry Debates Mini-Display Standards - Technology News by TechWeb
		Those schemes "solve the general problems of sending data at relatively low power [and are] suited for notebook-computer configurations, where a simple display is connected to a powerful computer," said Phillip Alvelda, president and founder of MicroDisplay, in San Pablo, Calif., which started sampling its liquid-crystal-on-silicon (LCOS) displays just last month.
		The problem with "low-voltage differential standards, as they currently stand," is they "monitor consumption levels that seem high when compared with the latest displays and display developments," Alvelda said.
		That power reduction, coupled with the new capabilities of intelligent displays, demands a standard model that should be "optimized for bidirectional communications, yet maintain the ultralow-power attributes," he said.
	www.techweb.com /wire/story/TWB19980612S0009 (1025 words)

	Terms at Softpicks Net: Dithered Color DIVX driver DEF Display Adaptor DDX DDF DRO DARMS DPC
		A solidcolor on one device (such as a 256-color monitor) may be a dithered color onanother device.
		A driver is a piece of software that works with the OS to control a particular piece of hardware, like a printer or a scanner or a mouse or whatever.
		A variant of a passivematrix display in which the top and bottom half of the screen are refreshedsimultaneously, allowing the screen to be refreshed twice as fast, yieldingbetter display quality.
	www.softpicks.net /terms/d.htm (1470 words)

	VerifiedComputers.com - IBM 15" G52 SVGA (WHITE) MONITOR
		Display modes at lower refresh rates are available for compatibility with older graphics adapters and system units., -Supported display modes are a function of the attaching system unit.
		The full range of display modes available with these monitors may not be available or supported with all combinations of system units, their operating systems, and application software., -Horizontal and vertical sync signal timings are critical in order to achieve acceptable screen images.
		The system unit stores and analyzes the received data and determines the combination of addressability and refresh rate (display mode) that best uses the capabilities of the monitor.
	www.verifiedcomputers.com /itemDetails.cfm?itemID=2000587 (713 words)

	AcerView (Site not responding. Last check: )
		In short it is everything you are looking for in a display when it come to your SOHO (Small Office Home Office) environment.
		AcerView monitors incorporate Acer’s iScreen technology that lets you adjust all the monitor’s image parameters by using interactive on-screen menus, which are controlled by push buttons on the front panel of the monitor.
		The user friendly VESA Display Data Channel (DDQ function is a plug and play device that lets the monitor communicate with the graphics accelerator card.
	www.hal-pc.org /journal/aug98/Reviews/acerview/acerview.html (362 words)

	Super Video Graphics Array [SVGA] Bus Pinout and Signal Names (Site not responding. Last check: )
		VESA Display Data Channel [DDC] is a VESA standard that defines how to read certain pins in a standard SVGA
		I2C interface bus, as DDC Data for SDA, and DDC Clock as SCL.
		FPDI [Flat Panel Display Interface] describes the electrical, logical, and connector interface between flat panel displays and display controllers in an integrated environment.
	www.interfacebus.com /Design_SVGA_PinOuts.html (555 words)

	XFree86 Video Timings HOWTO (Site not responding. Last check: )
		The time the beams would have been illuminating the top and bottom borders of the display is used for moving the beams from the bottom-right corner of the display to the top-left corner.
		The display requires that there be short time periods both before and after the horizontal and vertical sync pulses so that the position of the electron beams can stabilize.
		For a display with a resolution of 1024x768, this would be 1024 x 768 = 786432, which is the number of visible dots on the display.
	www.cs.wisc.edu /niagara/data/lindoc/XFree86-Video-Timings-HOWTO.xml (9101 words)

	Documentation
		The pattern remains stationary and stays on for 60 seconds, and the LED on the front of the monitor remains orange.
		This monitor complies with VESA Display Data Channel (DDC) standards, which support Plug and Play features that simplify monitor installation.
		No message is displayed, and the power indicator is green or flashing orange.
	support.dell.com /support/edocs/monitors/55347/notes.htm (914 words)

	Microsoft Windows 95: Devices
		If a display driver fails to load or initialize when Windows 95 is started, Windows 95 uses the generic VGA display driver.
		Windows 95 display mini-drivers use the DIB engine for all in-memory graphics operations and on-screen operations that do not pass to the adapter for hardware acceleration.
		The display monitor is typically one of the most "power hungry" components of a computer.
	www.microsoft.com /technet/archive/win95/rk19_dev.mspx (11017 words)

	The Video Electronics Standards Association VESA is an international body that... (Site not responding. Last check: )
		The "Video Electronics Standards Association (VESA)" is an international body that has issued a number of standards, mostly relating to the functioning of video peripheral peripherals in IBM PC IBM PC compatible computer computers.
		"VESA Local Bus VESA Local Bus" (VLB), used at one time as a fast video bus (akin to the modern AGP AGP).
		"VESA Display Data Channel VESA Display Data Channel" (DDC), allowing monitors to identify themselves to the video boards they're attached to.
	www.biodatabase.de /VESA (213 words)

	MatroX Files FAQ
		VESA (Video Electronics Standards Association) is an organization developing standards used by computer companies.
		When we talk abot VESA support in display controller, we usually refer to the support of VESA standards in the controller's firmware (BIOS), and in parrticular - to VESA/VBE.
		The term "VESA compatibility" does not mean that the card supports any particular set of graphics modes.
	grafi.ii.pw.edu.pl /gbm/matrox/faq.html (672 words)

	A Short Guide to DVI Cables and DVI Connectors
		Each link in the DVI standard is made up of 3 data channels for RGB information and has a maximum bandwidth of 165 Mhz; this equates to 165 million pixels per second.
		This means that effective data throughput over a single link DVI cable is 4.95Gbps while in the case of dual link DVI, max.
		The first step is to carefully examine the connection points on your source and display device to identify the type of female DVI plugs installed on your gear and therefore, the type of signals they are compatible with.
	www.practical-home-theater-guide.com /dvi-cables.html (1627 words)

	WinMag (Site not responding. Last check: )
		Consider a middle-ground alternative: a 19-inch display with more than 18 inches of viewable area.
		The EO90 includes PreVu on-screen display controls; advanced screen geometry controls for trapezoid, pincushion and rotation/tilt; and Coloright Technology, a color temperature control with red, green and blue gain adjustments.
		The m onitor complies with VESA's Display Data Channel (DDC) 1/2B standards.
	www.winmag.com /library/1997/1101/newpr039.htm (562 words)

	WinMag (Site not responding. Last check: )
		The ArtMedia GT-960T also supports VESA Display Data Channel (DDC) Plug-and-Play standards and comes with a three-year limited warranty.
		At the back of the unit you'll find inputs for both a typical 15-pin VGA connector or the supplied five-plug set of BNC connectors.
		The on-screen display was extremely helpful, indicating adjustment settings both graphically and numerically.
	www.winmag.com /library/1997/0701/winla128.htm (301 words)

	Society for Information Display New Products July 2002
		The company now has the capability to perform the full front-end display assembly, back-end packaging, and complete electrical and optical test at the company's ISO-certified production facility in Tempe.
		Both monitors meet the TCO '95 standards for low emissions and incorporate a four-stage (On, Stand-by, Suspend, Off) power-management system that complies with the VESA DPMS, NUTEK, and Environmental Protection Agency's Energy Star standards for reduced power consumption.
		And both models have built-in plug and play capability that conforms to the Video Electronics Standards Association's (VESA) Display Data Channel (DDC) Type 1/2B standards.
	www.sid.org /news/archive/newproducts0207.html (602 words)

	VESA Standards Summaries
		To purchase any of VESA's Standards, you may use our interactive Order Form.
		Standards orders are not shipped until after full payment has been received.
		Display Transfer Characteristics Data Block (DTCDB) Standard Version 1
	www.vesa.org /Standards/summaries.htm (184 words)

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