Isaac Sim 5.0 crashes after app ready on RTX 5070 Blackwell with nvidia-driver-580-open

[nactroenue]

Description

Hello,

I am experiencing a consistent crash when launching Isaac Sim on a system with an NVIDIA GeForce RTX 5070 Blackwell GPU.

Isaac Sim starts, detects the GPU correctly, reaches startup / app ready, then crashes with a segmentation fault in the RTX renderer / post-processing libraries. The issue happens before loading any custom scene or user code.

The crash appears related to the RTX rendering stack / DLSS / NGX / post-processing path.

Isaac Sim version

5.0.0 and 4.5.5

Operating System (OS)

Ubuntu 24.04.4 LTS Kernel: 6.17.0-29-generic

GPU Name

NVIDIA GeForce RTX 5070 Blackwell / sm_120 VRAM: 12227 MiB

GPU Driver and CUDA versions

NVIDIA driver package: nvidia-driver-580-open NVIDIA driver version: 580.159.03 CUDA version shown by nvidia-smi: 13.0 Graphics API: Vulkan

Logs

GX cannot find DLSS-RR feature or it is not supported for the current hardware/driver.
createDLSSContext error: unable to initialize context. Optional DLSS feature is disabled.

[Fatal] [carb.crashreporter-breakpad.plugin] [crash] Thread backtrace follows:
000: libc.so.6!__sigaction+0x50
001: libgpu.foundation.plugin.so
002: libgpu.foundation.plugin.so
003: librtx.postprocessing.plugin.so
004: librtx.postprocessing.plugin.so
005: librtx.postprocessing.plugin.so!carbOnPluginRegisterEx
006: librtx.postprocessing.plugin.so!carbOnPluginPreStartup
007: libcarb.scenerenderer-rtx.plugin.so
008: libcarb.scenerenderer-rtx.plugin.so
009: libcarb.scenerenderer-rtx.plugin.so!carbOnPluginShutdown
010: libomni.hydra.rtx.plugin.so

Segmentation fault (core dumped)

kit_20260528_231541.log

Additional information

Workarounds already tried:

• Cleared Isaac Sim / Omniverse caches
• Ran ./clear_caches.sh
• Ran with --reset-user
• Tried Isaac Sim Full
• Tried Isaac Sim Fabric
• Tried Isaac Sim Streaming
• Tried Isaac Sim 4.5.0
• Tried disabling DLSS and DLSS-RR
• Tried enabling/disabling ECO mode
• Set CPU governor to performance
• Verified Isaac Sim Compatibility Checker passes

The Isaac Sim 5.0 Compatibility Checker passes successfully.

Current NVIDIA package:

nvidia-driver-580-open
Version: 580.159.03-0ubuntu0.24.04.1

Available Ubuntu packages:

nvidia-driver-595-open: 595.71.05-0ubuntu0.24.04.1
nvidia-driver-595: 595.71.05-0ubuntu0.24.04.1
nvidia-driver-580: 580.159.03-0ubuntu0.24.04.1
nvidia-driver-580-open: 580.159.03-0ubuntu0.24.04.1

Question:
Would you recommend switching from nvidia-driver-580-open to nvidia-driver-580 proprietary/non-open kernel module for Isaac Sim?

I am currently using the Ubuntu-packaged nvidia-driver-580-open driver. Since the crash happens in the Kit RTX renderer / post-processing stack, I would like to confirm whether the open kernel module variant is expected to be supported, or whether the proprietary/non-open variant is preferred for Isaac Sim.

I would prefer not to change drivers unless this is the recommended workaround.

[vick-yu]

Hi @nactroenue,

Thanks for the detailed report and logs.

Summary

The crash in librtx.postprocessing.plugin.so is a known category of issue with Blackwell (sm_120) GPUs on using non validated driver versions.

Recommended Steps

1. Upgrade to Isaac Sim 5.1.0 (current GA release) or 6.0.0 (latest release). Both include Blackwell-specific fixes not present in 5.0.0.
2. Install the recommended driver version 580.65.06 using the NVIDIA .run installer from the Unix Driver Archive . This is the validated Linux driver for Isaac Sim 5.1.0 (see Isaac Sim Requirements ). The Ubuntu-packaged
   nvidia-driver-580-open at 580.159.03 has not been validated with Omniverse Kit.

Similar Report

Another user with an RTX 5080 and the nvidia-driver-580-open Ubuntu package reported the same crash pattern on Ubuntu 24.04:

• Isaac Sim 5.1 crashes with segmentation fault on Ubuntu 24.04 (RTX 5080, driver 580-open) (https://forums.developer.nvidia.com/t/isaac-sim-5-1-crashes-with-segmentation-fault-on-ubuntu-24-04-rtx-5080-driver-580-open/363553)

We recommended switching to driver 580.65.06 or 580.95.05 via the .run installer.

This docs gap regarding links to recommended driver versions has been addressed via an internal ticket (6037337), and the update will ship with the upcoming 6.0 GA release.

[nactroenue]

Hi,

Thank you for the detailed explanation and for confirming the driver validation status.

I tested Isaac Sim 5.1.0 with my current Ubuntu-packaged nvidia-driver-580-open version 580.159.03.

Good news: Isaac Sim 5.1.0 now launches successfully on my RTX 5070. The previous crash in librtx.postprocessing.plugin.so that occurred with Isaac Sim 5.0.0 is no longer reproduced in my initial tests.

I also tested an empty stage, RTX Real-Time, RTX Interactive / Path Tracing, simple geometry stress tests, and a warehouse asset loaded as reference. The application remained stable.

For now, I will stay on Isaac Sim 5.1.0 and keep the current Ubuntu-packaged driver, since it appears stable for my current use case. I will avoid changing to the .run driver unless the crash comes back or I hit another rendering issue.

This confirms that upgrading from Isaac Sim 5.0.0 to 5.1.0 was enough to resolve the startup crash in my case.

Thanks again for the help.