MacPro 2013 Multiple Monitors

[jimwww]

Just wondering if you can help..

I have 2- 24 inch monitors connected to my MacPro 2013 through two mini display ports (dvi)

I just bought a 24 inch Monitor that connects through HDMI. I connected it to my MacPro and it now only sees one dvi display.

I unplug the HDMI and then it sees 2 DVI monitors again... What's happening & how do I get it to see:

2 DVI displays and One HDMI display.

I did search.. but not much came up with this config
thanks

Mac Pro (Late 2013), OS X Yosemite (10.10.1)

 

[brand]

On the 6,1 the HDMI shares the same bus as the two bottom Thunderbolt ports.

Do you have both current monitors plugged into both of the bottom Thunderbolt ports?

 

[Cheule]

On this page: http://support.apple.com/en-us/HT202801

It shows this image, which describes which ports are part of which bus.

Note that for optimal performance, Apple suggests you put each display on a different bus, i.e. 0, 1 or 2.

If you still have problems after shuffling your displays around on the ports, I do recall a friend of mine with a nMP that said he had problems with setup similar to yours. I can ask him what he did to resolve it. Let us know.

 

[jimwww]

Both mini display ports..

Both of them are plugged in up top, either side.
Hdmi was on lower bus.

 

[itcrashed]

Just wondering if you can help..

I have 2- 24 inch monitors connected to my MacPro 2013 through two mini display ports (dvi)

I just bought a 24 inch Monitor that connects through HDMI. I connected it to my MacPro and it now only sees one dvi display.

I unplug the HDMI and then it sees 2 DVI monitors again... What's happening & how do I get it to see:

2 DVI displays and One HDMI display.

I did search.. but not much came up with this config
thanks

Mac Pro (Late 2013), OS X Yosemite (10.10.1)

If using the HDMI port, you can only use one more monitor with a converter. The rest must all be DP. It's not documented, but I've seen a few Youtubes with others stating this.