Q: Apple Cinema Displays
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Jan 11, 2016 11:09 AMby Grant Bennet-Alder,HelpfulA properly-functioning 4870 works fine from its Dual-Link DVI output, PROVIDED, you use a Dual-Link DVI cable. I have one card (out of the three I bought new) where the DVI output has failed, but the others (including VGA from a DVI-I adapter) still work.
All Dual-Link DVI cables have all pins in the grid present, but Single-Link DVI cables may not have the center columns, or may have the pins but not connected end-to-end.
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Jan 11, 2016 11:12 AMby Lloyd Schnuck,Have a minidisplay port and adapter as well as the x2 card with two DVI connectors and both monitors will display, one at 2560 and the second will max at 1280, does this mean this is a Single-Link DVI cable since 1280 is the best #2 will display?
would like to have both at 2560,
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by Grant Bennet-Alder,Jan 11, 2016 11:18 AM
Grant Bennet-Alder
Jan 11, 2016 11:18 AM
in response to Lloyd Schnuck
Level 9
(61,418 points)
DesktopsOn some cards, when two DVIs were present, it was common to have one be Dual-Link and one be Single-Link.
graphic from wikipedia
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by Grant Bennet-Alder,Jan 11, 2016 3:44 PM
Grant Bennet-Alder
Jan 11, 2016 3:44 PM
in response to Lloyd Schnuck
Level 9
(61,418 points)
Desktops
The adapter to squeeze Dual-Link DVI out of a Mini DisplayPort is non-trivial, requires a USB pigtail for additional power, and runs about US$100.
