Digital BW, The Print

On Apr 2, 2009, at 8:42 AM, AnnMarie Tornabene wrote:

> What the hell is DDC compliance?

More than you probably want to know about DDC:

DDC is a Direct Digital Communication standard, by which computers can  
communicate with displays. This once was an exciting new technology  
with big promise for the future, but over time it has proven less  
exciting... there are many displays (I'm tempted to say most) which do  
not institute DDC correctly, if at all, so its necessary to check each  
and every model released to see whether it actually supports DDC, what  
it says, what it really means, and what info is stored in the wrong  
places, or  is just plain wrong. And for most displays all this gets  
you is a way to automatically adjust the backlight control and perhaps  
one or two other controls, if the display has these controls. Advanced  
DDC support comes down to communicating with a few of the more high  
end displays that have "smarts" onboard, to control those onboard  
functions. Given the problems DDC communication has had from various  
OS versions over time, even companies interested in developing  
displays with "smart" features are looking at other means of  
communication, as they can't really trust DDC to be there when they  
need it...

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...


  ----------



Datacolor
www.datacolor.com/Spyder3




[Non-text portions of this message have been removed]