Matrox TripleHead and Mac mini issue

RIL

Hello everyone! We're in an emergency situation...

While testing for an installation, we encountered the following problem: the Mac mini M4 Sequoia with 16GB of RAM doesn't recognize Matrox TripleHeadToGo DP. The Display Manager recognizes it, but it doesn't output an image.

Then we tried with a Matrox TripleHeadToGo SE, and it does output an image, but with a glitch, very distorted 3040x768.

I searched for some info on the forums, and it seems to be an issue with one or two Mac operating systems at the moment. According to Matrox, it outputs the full resolution at 50Hz, but Mac doesn't allow you to change it.
Has anyone experienced this situation? Or found a workable solution?

Thanks for everything!
Best,
Maxi

DusX

I haven't experienced this, sorry.
Perhaps a display management utility might help you get the compatible settings. (not the tool I was looking for... another has X in the name I believe and has been posted about in the forum in the past)

RIL

Dear @dusx thanks for you fast response...

We've already tried SwitchResX and betterDisplay without positive results... We think it's an OS and Hz compatibility issue. Does any of this sound possible to you?

Now we're going to try it with an M4 MacBook Pro to dismiss out options

Thanks a lot !

Best,

Maxi

RIL

@dusx

Updating the info... I'm now testing the M4 MacBook Pro, and it behaves exactly the same. The DP doesn't display any images, and the SE has a glitch. And you can't change the Hz on either.

Thanks !

Maxi

RIL

Hi all! I wanted to share the results of our hardware testing.

We found the problem is the Matrox Triple head to go DP on Mac MIni M4 Sequoia. No video outputs to the projector. Changing the refresch freq with no results

Positive tests:

- Matrox TripleHeadToGo Digital DP on Windows 11

- Matrox TripleHeadToGo Digital SE con Mac mini M4 Both Mac and Windows. (multiple video outputs full resolution each projector)

- DataPath Hx4 both Mac and windows

- SwitchResX both Mac and windows

I hope this info help others. And of course if anyone can figure out to solve the initial issue is welcome

@DusX @Woland

Best,

RIL- Maxi