Tearing in Inner Frustum

We recently tried to set up Multi-Process Rendering and it was working wonderfully except we were experiencing minor tearing between viewports and major tearing between nodes as shown here:

We’ve confirmed that we’re genlocked to our Evertz-5700, so my gut says that it’s something in engine. We’re running the following setup:

Unreal 5.3
(2) Render Nodes
Each with (2) RTX 6000 ADA GPUs for a total of (4) GPUs
Each with (1) Quadro Sync II

In our nDisplay config, we’re running these render nodes with (2) viewports each. We’re using Nvidia(2) as our sync policy. For sync, we’re running with Genlock + Framelock. Genlock into Render Node 1 then Frame Lock from Render Node 1 to Render Node 2. here are a couple of screen shots from Switchboard for more context:

Thanks for any insights!

Hi Justin, it seems you have to hide taskbar
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I am a bit confused by the display system, is that some sort of KVM attached too?

image

then double check the sync settings in nvidia control panel, they seems off

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I hope that helps!

best,
vitalii boiko