Blackmagic ultrastudio 4k mini + jit.grab keeps timing out after a few minutes unattended

Jess 's icon

Hello,

I was very excited that the new max 9 release made the native input work for my ultrastudio 4k mini. However I've been having trouble for a while, with both native and non-native inputs (the non-native has disappeared with my upgrade to sequoia). If I leave my patch, or even the jit.grab Blackmagic help file open for a bit it disconnects and I have to reopen the device. This is very disruptive to my microscopy workshops (running a sony rx0 II w/4k hdmi output for live video from my microscope). I was wondering if anyone with this device had found a workaround. Or, worse case scenario maybe someone could recommend another device to digitize video that is more max friendly? I do need an output for raw video to an external screen on it. I tried an Elgato 4k device but it drops frames here and there and this is very disruptive to my application- being the trails of microscopic critters, it make little gaps in the trails. So far the 4k ultrastudio is the only device that does not drop frames, but it has this issue of disconnecting randomly, nothing in the max console about it. It seems to happen more when I don't click anything in my patch and just go outside to vape etc, it takes anywhere from 3-20 min and it will always disconnect.

Thanks

Rob Ramirez's icon

can you verify that it doesn't happen with the blackamagic capture software?

A possible alternative on Mac is the BlackSyphon software https://vdmx.vidvox.net/blog/black-syphon

Would be interested to hear your results with either of these, which might help narrow down the culprit.

Jess 's icon

FIXED.

I feel dumb. I was like, every time I vape it seems like I come back and it's disconnected. My friend asks, maybe it's your phone?

Yep. It was disconnecting the iPhone camera input and reshuffling the inputs. Turning off wifi on my phone fixed it.

yay

Rob Ramirez's icon

oof super annoying iphone behavior, and nice sleuthing. thanks for sharing. good to know that's a potential scenario, as others may encounter it.