ZED SDK 5.4.0 on DGX Spark (GB10) fails NEURAL depth model optimization and enters infinite optimization loop

Software
1

Hi Stereolabs team,

I’m testing the new DGX Spark beta support introduced in ZED SDK 5.4.0 and have encountered an issue with NEURAL depth model optimization.

Hardware

  • NVIDIA DGX Spark (GB10)

  • System reports: Dell Pro Max with GB10 FCM1253

  • Driver Version: 580.142

Software

  • Ubuntu 24.04.4 LTS

  • ZED SDK 5.4.0

  • Fresh installation

Issue

After installing the SDK and attempting to run any application that uses NEURAL depth mode, the SDK prompts for AI model optimization.

The optimization process starts but eventually fails with the message:

Failed to optimize model. NEURAL mode won’t be available.

After this failure, the application immediately triggers the same optimization prompt. The model never successfully optimizes, and the system appears stuck in a loop where optimization is repeatedly requested but always fails.

Steps to Reproduce

  1. Install ZED SDK 5.4.0 on DGX Spark (GB10).

  2. Launch an application that uses NEURAL depth mode (or attempt model optimization manually).

  3. Optimization begins.

  4. Optimization fails with:

    • “Failed to optimize model. NEURAL mode won’t be available.”

  5. SDK requests optimization again and repeats the same failure.

I have not yet found a way to complete model optimization successfully. Happy to provide diagnostic logs if needed.

Thanks.

2

Hi @ShashankVSS
DGX Spark support is still experimental and not completely operational.
Your report will help us improve the compatibility of the ZED SDK with this platform.

Can you please run the ZED Diagnostic tool and share the JSON report that it generates?