2 MTi2 screens, can't get a 3rd non touch screen to work.

In theory even having the 2 Ravens on a single TB bus using HDMI converters shouldn't work, according to all the specs I've read the way the hardware is designed you can only have a single HDMI connection back to your video card on any given TB bus. If you haven't done so already I would suggest trying to put one Mini Displayport to HDMI dongle per TB bus (including the HDMI output on your TB2 dock, I have the same one). If you read the specs on the dock they say that if you're using the HDMI 1.4b output on it that any other display plugged into that bus would have to be native mini displayport.

Hope this helps. I've just done a whole lot of TB juggling on my own setup (and I only have a single Raven and a single TV).

If I get a TB2 dock (they all have their own power supply, so they wouldn't be using the TB bus for power), go out of a TB connector from the MacPro to the dock, out of the dock to the Samsung (mini DP to HDMI), do you think since the dock won't be pulling power from the TB bus, the Samsung will work?

It actually can't do 4 screens (I own this exact dock).  From the writeup directly below it:



You can only run one single HDMI based monitor per thunderbolt bus.

I would suggest to the OP to try running one of the 3 screens on the built-in HDMI port and see if that helps, other than that if the Mac Pro indeed does only have two thunderbolt busses I don't know that what you're trying to do would be possible unless you get a mini displayport/thunderbolt based display.

It doesn't so much "add another" PCIe bus, it just allows you to attach a PCIe device to the thunderbolt bus.

So if there are indeed 3 busses you should be able to put one HDMI monitor per bus and have it work (in theory). Have you tried doing it like this yet?

Sigh. The resolutions don't make any kind of difference in terms of being on the same bus, it's a technical limitation of how thunderbolt gets to the video card for backwards compatibility. Adding a thunderbolt dock will not solve any issues here nor will it allow you to add more monitors!

I also use a couple of UAD devices in my setup as well as a thunderbolt RAID (Pegasus), so I know exactly what you're going through right now. I am a tech head and I've just been doing almost the exact same sort of stuff with my setup (although I don't have two ravens). If your setup is like mine you will need to do some planning to get it all lined up properly. I use an Apollo Twin which doesn't have a second thunderbolt port, so it has to be at the end of one of the chains, and when using mini displayport to HDMI adapters they also need to be at the end of a chain. As far as having your UAD devices on the same bus -- you don't need to do that, it doesn't matter as long as they are all plugged in.

Try it like I'm suggesting because, and you'll have to trust me on this one (and I am a tech head and mac technologist for my day job), it's the only way you're going to get 3 monitors working on your rig. One monitor per thunderbolt bus and don't worry so much about where your other devices are in terms of which bus they are on. You are not going to even come close to maxing out the busses in terms of bandwidth.

Raven post
Well I am finally back to trying my Ravens with a third non touch monitor. I had to put the Ravens away for a while, as I had a lot of projects and didn't want to be learning while tracking and mixing paying clients.
In a nutshell, I have the 3rd monitor working with the 2 Ravens (it is now an LG 34" widescreen), but I can't seem to get the monitors setup correctly.
I have tried various arrangements in "displays" in system preferences, with no luck. How can I have my 2 Ravens (with edit on the right and mix window on left, which works fine without the lg turned on) and mirror the edit or mix screen on the lg? It seems like it should be possible?
Another little issue I can't figure out. When aligning the mix window, it is aligned perfectly, but the Raven grey mixer stays on top of the PT mixer unless I press the Raven mixer button?
Maybe tonight I'll try putting the finder heading bar on the left screen (#1) maybe that will make a difference?
Thanks
Mike

Everything is working mostly well with the 2 MTis. But I do have the occasional issue of the touch suddenly becoming unresponsive, in PT, Raven and even the regular desktop. After uninstalling and reinstalling UPDd, it will be fine for a while.
How do I do a complete clean uninstall of all Raven related software and start from scratch? I only ask because I did have the UPDD install lock up on me at one point and I had to hold the power button on the Trashcan just to shutdown and try again. I'm thinking there are files, or fragments of files floating around in there??
Is there a link to instructions for a clean uninstall, so I have a clean start?

Also, has anyone had success running a 3rd non touch monitor that can mirror either the mix or edit window? There has to be a way!!
A lot of my client base are returning clients. They are used to being able to sit in the control room and watch what's going on in the session on a bigger monitor that they can see, instead of standing or sitting beside me watching over my shoulder what is going on with the Ravens, I'm sure a lot of you guys get what I'm saying. I love the 2 touchscreens, and the more I learn and practice with them, the more I want to keep running my sessions that way, but I really need the 3rd monitor to work!
Any suggestions would be most appreciated.
Thanks!
Mike
I'm still on Yosemite with PT 12.5

I have the 3rd screen working well now. Using it for the time display and plugins. The only issue I am still having is the alignment of the Raven mixer. I have tried everything I can think of and remember reading about. Here is a screen shot, it looks aligned to me. Any suggestions?

Ok, things are getting better. The alignment issue is rare now. Sometimes I have to realign Raven to a session that is new to Raven.
Here is what is going on now.
Tuesday I had a Mix session, everything was working as it should. Mix window working on screen 1 on the left, edit window on screen 2 on the right, LG ultra wide in the middle as screen 3, used for the time display, system usage, plugins, ect...
Then yesterday I fire up the system, before opening PT12 or Raven, I touch the right monitor (#2) and it is reacting on the LG??? That is not the 1st time this has happened, I thought the 1st time it was a 1 time glitch, now it seems to happen almost every day. I go into UPDD settings and go through each monitor and that usually does the trick (unless of course during the calibration part it goes to the LG for Raven 2) then I uninstall and reinstall UPDD. That doesn't always work the 1st time either, kind of hit & miss with that.
The LG is thunderbolt input on it's own buss. The Ravens are at the end of separate thunderbolt daisy chains on the other 2 TB busses. Not sure why it's seeing the LG as part of the Raven setup? Raven 1 on the left always works fine with the touch, it's Raven 2 on the right that gets funky with the LG.
When it is working correctly, it is the best, most comfortable work flow I have ever had.
I was thinking of trying this tonight:
Before I turn on the system, unplugging the LG from the trashcan, then boot up. After the Ravens are hopefully working correctly, plug the LG into the trashcan and see what happens. Any other suggestions?

As always, thanks in advance!
Mike