@ben Yeah, I’m running 10.14.6, but good lookin out. There’s no SDK to install for mac, just some C libraries and a testing utility (which does see the input stream, but still doesn’t help Touch).
I did try running their USBCaptureUtility, but that’s mainly for setting EDIDs and such. And it didn’t help anyway. Again, this problem isn’t unique to the Magewell product, it seems to be all webcam signals. GPU incompatibility sounds like the best bet here, which is unfortunate.
I did have one brief glimmer of hope. I accidentally got it to work in Touch, then was able to repeat it, but under weird enough circumstances that I can’t use them in production. Maybe this will help sleuth out what’s going on?
I had the Magewell device plugged in then additionally plugged in a webcam. I checked in Touch and it was seeing black for both. Then I opened up the mac’s built-in PhotoBooth app, and as expected, could see the webcam signal. I switched back to Touch and toggled the Video Device In TOP off and back on and Lo and Behold! There was the webcam feed in Touch. Then I switched to the Magewell input and Touch could see that as well.
I rebooted and was able to repeat those steps to see the Magewell in Touch - but I can’t get it to work without having the webcam also attached, or without running PhotoBooth or FaceTime (or anything else that can see the cam feed), OR without toggling the TOP off and on.
It’s super bizarre, but it proves that the webcam signal CAN get into touch on this graphics card. I just have no idea what obscure library in what stack has to get invoked to make it happen.
Hope any of that helps. Otherwise looks like I’ll be buying a BlackMagic card or something.
Thanks for all your help so far.