[OpenICC] X and colour management

Ben Guthro bguthro at gretagmacbeth.com
Wed Feb 9 07:08:53 EST 2005


On Feb 8, 2005, at 2:58 PM, Bob Friesenhahn wrote:
>
> If the user uses different displays with the same model number (common 
> occurance in large companies), then it seems that the EDID information 
> will not help much.  The MAC address will at least positively identify 
> the laptop since MAC addresses are required to be unique across the 
> world.

Not true.
The 128 byte EDID contains a serial number, as well as theoretical x,y 
CIE data for the display type. Using the Vendor ID, Product ID, and 
serial number, you can uniquely  identify a physical display.



Ben Guthro
Software Engineer
Center of Excellence for Display Technologies
a Gretag Macbeth Company
603.681.0315 x234




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