mGPU set up for nDisplay making random viewports dark/artefacted.

Hey all,

I’m working on getting two GPUs to render different viewports with nDisplay. There are three total viewports. Everything is running on mu desktop - no networking with other computers.

I’m using 2 geforce RTX 2080s and an NVLink bridge.

I’ve enabled mGPU, changed the render sync Policy to Nvidia (2), and changed the GPU index for each VP. The first and third viewports are GPU 0, and the 2nd (middle) viewport is GPU 1. In switchboard settings, I’ve changed the nDisplay number of GPUs to 2.

When I launch the scene with switchboard, the first viewport renders with a dark shadow accross the top of the screen. The second viewport is significantly darker, and the third renders with artefacts. Here’s a couple images for example:

Please help!

Is this problem solved ???

Let me know ???