Dual Display Question

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Level 4

1,587 points

Dual Display Question

I have a new Mac Pro 8-Core with the dual AMD FirePro D700s.

I am following the info from this article.
Use multiple displays with your Mac Pro (Late 2013) - Apple Support

Currently I have one display attached via bus 2, and the other via bus 0. I have tried all sorts of combinations but still no improvement.

I have tried using one OWC ThunderBolt 2 Dock along with a direct HDMI connection. I have also tried the same OWC dock with a Dual-Link Mini DisplayPort to DVI adapter. But I get the same result. Both displays seem to be attached to the same video card.

This is a real issue, because i1Profiler seems to think both displays are the same one, so I am not getting a correct display calibration result.

Can this be remedied?

Posted on Dec 12, 2017 9:15 AM

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Answer 1

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Grant Bennet-Alder

Level 10

127,711 points

Dec 12, 2017 10:16 AM in response to iGary

Both displays seem to be attached to the same video card.

You can attach up to six displays to that Mac, and all six will be shown as connected to one of the two cards. The other graphics card is reserved for GPU computations ONLY, and is not subject to being interrupted by mundane screen-refresh chores, which would greatly slow down its computations.

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Answer 2

iGary Author

Level 4

1,587 points

Dec 12, 2017 10:18 AM in response to Grant Bennet-Alder

Thank you.

There must be an issue with i1Profiler. In fact I was just now trying to dig up the now-defunct ColorEyes Display Pro from the old Mac Pro I just replaced. It might work correctly (or another app). It did work before with these same two monitors on the old Mac Pro.

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Answer 3

DonH49

Level 6

16,704 points

Dec 12, 2017 9:53 AM in response to iGary

that ASP showing Graphic Displays is NORMAL. That's how it works.

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