AZ1111

Q: Help! Multiple Displays not Working. (Mac Pro late 2013).

Hardware:

Late 2013 Mac Pro

Processor: 3.7 GHz Quad Core Intel Xeon E5

Memory: 12 GB 1867 MHz DDR ECC

Graphics: AMD FirePro D300 2048 M8

Software: OS X 10.9.2 (13C64)

 

Displays:

4 LG Electronics S-Class 25UM64-S 25-Inch Screen LED-Lit Monitor's


Display Connection:

6 Moshi Mini DisplayPort to HDMI Adapter (4K)


Issue:

First of all, thank you in advance for taking the time to help!


I just picked up this Mac Pro (as stated above) and I am having quite the time trying to get the monitors to display properly (or at all!)!


Everything is hooked up properly (i'd like to think so), i've run through most of the trouble shooting methods I can think of and have found online... and still, 2 of the 4 displays do not show! The Mac Pro is not recognizing two of them.


I was told that the MacPro could recognize up to 6 Mini DisplayPort to HDMI monitors, however, only 2 are working properly. Is it because of the Moshi Mini DisplayPort to HDMI adapters? Should I be running MDP to DP cables instead? The monitors support DisplayPort input's, however, they also allow for PIP hence the use of 6 MDP adapters to HDMI. (2 of the monitors are using the built in picture in picture split screen. So 2 HDMI inputs each).

 

Really pulling my hair on this one.. I figured it would be plug and play.. at least, that's how apple USED to be.

 

Any ideas?! Am I simply needing to use the MDP to DP cables instead of MDP to HDMI? Please help!

 

Thank you!


 

 


Mac Pro, OS X Mavericks (10.9.2)

Posted on Apr 10, 2015 12:05 AM

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Q: Help! Multiple Displays not Working. (Mac Pro late 2013).

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  • by lllaass,

    lllaass lllaass Apr 10, 2015 2:00 AM in response to AZ1111
    Level 10 (188,781 points)
    Desktops
    Apr 10, 2015 2:00 AM in response to AZ1111

    See:

    Mac Pro (Late 2013): Using multiple displays - Apple Support

    Can I connect more than 2 DVI or HDMI displays?

    Mac Pro supports a total of two DVI or HDMI displays when connected via the built-in HDMI port or using the Apple Mini DisplayPort to DVI adapter. To connect additional DVI displays, use an active DVI adaptersuch as the Apple Mini DisplayPort to Dual-Link DVI adapter. You can connect up to six active adapter DVI displays. This requires a powered USB hub since Mac Pro offers four USB ports and you will need six to connect them all.

     

    Thus, use a display port to mini display port cable