Secondary display does not connect

Hello world

I have trouble getting a secondary display to work. The installer worked well on an older Mac Pro until we passed out.

Now, we use a Mac Pro mid-2012, that uses a DVI output for main monitor. The secondary display is sent from a thunderbolt port to a mini-affichage of a transmitter HDMI to HDMI, then drills down to a level via ethernet to a receiver, which converts it to HDMI for a TV.

Whenever I connect the mini display of converter for love at first sight, the computer behaves as if she's trying to connect flashing market, switching back and forth between 1 and 2 screens. It just keeps going black, showing black desktop, two desktop computers, never until that I disconnect the converter mini display.

Anyone have any ideas why? The Setup program has worked well on the previous computer, a 2006 Mac Pro, using DVI to HDMI instead of the mini HDMI display. I also tried to use the DVI on the new port and the same result.

Thank you!

The Mac requires the display to meet an initial query with its name and capabilities.

No answer = no image.

HDMI is for TVs, then your box of stunt may not have implemented the secondary channel required to connect to the computer and ability to react on it.

Tags: Mac

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