Could not query CUDA device Isaacsim rendering failure

Omniverse Isaac Sim
1

Isaac Sim Version

4.0.0

Operating System

Ubuntu 22.04

GPU Information

  • Model: Quadro RTX 4000
  • Driver Version: 535.183.01
  • CUDA Version: 12.2

Topic Description

Hello I’m using the python interface to isaacsim to view some simulation data. Regularly I get errors on startup like:
2025-05-08 13:52:11 [1,011ms] [Error] [carb.cudainterop.plugin] CUDA error 999: cudaErrorUnknown - unknown error)
2025-05-08 13:52:11 [1,011ms] [Error] [carb.cudainterop.plugin] Failed to query CUDA device count.
2025-05-08 13:52:11 [1,011ms] [Error] [carb.cudainterop.plugin] Could not query CUDA device.
2025-05-08 13:52:11 [1,011ms] [Warning] [carb.cudainterop.plugin] Unable to get NVML device from physical device.

There is then continous spew: [Warning] [omni.hydra] Rendering failed.
Often this seems to happen after my machine has been suspended. The only way that I can fix is to reboot my machine. Oddly enough if I use the omniverse-launcher to start omniverse code (2022.3.3) it seems to render fine even as isaac is hosed.

Error Messages

2025-05-08 13:51:18 [32,790ms] [Warning] [omni.graph.core.plugin] OmniGraphSettings::getCudaDeviceOrdinal: unable to get a valid CUDA device id from the renderer. Defaulting to GPU0.
2025-05-08 13:51:18 [32,795ms] [Error] [gpu.foundation.plugin] CUDA interop cannot be used!
2025-05-08 13:51:18 [32,795ms] [Error] [gpu.foundation.plugin] Texture creation failed for the device: 0.
2025-05-08 13:51:18 [32,795ms] [Error] [carb.scenerenderer-rtx.plugin] Failed to allocate 1280x720 LdrColor resource for device mask 0x1
2025-05-08 13:51:18 [32,795ms] [Warning] [omni.hydra] Rendering failed.

Additional Information

What I’ve Tried

Rebooting, a/b testing isaacsim vs omniverse code

Would love to have a way to reset the state of things so I didn’t need to restart machine, which is making me nervous about deploying things to CI.

2

The Quadro RTX 4000 is a pretty old card for this. It is first gen RTX. It only has 36 RT cores and 8GB Ram. It really is below our minimum specs. It might work. It might not. You could try with the latest drivers or the recommended drivers here Driver Details | NVIDIA

3

Thank you for providing detailed information about your system and the issue you’re experiencing after resuming from suspension.

To help us narrow down the root cause, could you please clarify how you are suspending your system?

Additionally, could you try updating to the latest Production Branch Version NVIDIA drivers and see if the issue persists? If possible, please also test with Isaac Sim 4.5.0, as there may be relevant fixes or improvements in the newer release.