Warp & blend with different resolutions

Hello,

I have somewhat of an unusual setup:

  • 2 4K projectors at the center (3840*2160)
  • 2 HD projectors, one on each side (1920*1080)

I don’t need blending between the HD projectors and the 4K projectors, only between the two 4K projectors.

So my process is the following:

  • I enable mosaic on the 4K screens, so I have effectively 3 logical displays, from left to right: 1920x1080 - 7680x2160 - 1920x1080.
  • I then try to setup warping and blending via the nvapi => the computer just restarts (driver crashes)

If I do the same without mosaic enabled (4 screens : 1920x1080 - 3840x 2160 - 3840x 2160- 1920x1080), it doesn’t crash, the warping is done properly, but the blending is only partial because mosaic is not enabled, and we cannot “exchange” pixels between displays.

Is this workflow not supported? Is it a bug that can be fixed?
Thank you!