5 Minutes Launch every time. Quickly no responding so have to force quit

[yunhorace]

Description

Tried git clone installation and workstation installation, both had the same issues. Tried reset-user, clearing cashe. The GUI window will not pop-up until the end of the process[180+ seconds]. The whole laptop will freeze after 4s until the GUI window pop-up. Tried simple pytorch.tensorflow.cuda calculating, working perfectly.

Isaac Sim version

5.1.0

Operating System (OS)

Ubuntu 24.04

GPU Name

NVIDIA RTX PRO 5000 Blackwell Generation Laptop GPU

GPU Driver and CUDA versions

580.126.09 CUDA13.0

Logs

2026-02-26T02:24:55Z [4,890ms] [Info] [carb.launcher.plugin] done destroying the process object 0x566d3bd74a50 {pid = 4836}
2026-02-26T02:25:12Z [21,740ms] [Info] [omni.appwindow.plugin] Created window: width=2880,height=1800.
2026-02-26T02:25:12Z [21,741ms] [Info] [omni.ext._impl._internal] Searching for classes derived from 'omni.ext.IExt' in 'omni.appwindow' ('/home/lucky/isaacsim/extscache/omni.appwindow-1.1.10+69cbf6ad.lx64.r.cp311')
2026-02-26T02:25:12Z [21,742ms] [Info] [omni.ext.plugin] [ext: omni.appwindow-1.1.10] started, startup time: 16860 (ms)
2026-02-26T02:25:12Z [21,742ms] [Info] [omni.ext.plugin] About to startup: [ext: omni.kit.renderer.core-1.1.0] (order: 0) Triggered by: isaacsim.exp.full-5.1.0, isaacsim.util.debug_draw-3.1.0, omni.graph.core-2.184.5, omni.kit.renderer.capture-0.0.0, omni.kit.renderer.imgui-2.0.5, omni.kit.uiapp-0.0.0, omni.kit.window.collection-0.3.1 (path: /home/lucky/isaacsim/extscache/omni.kit.renderer.core-1.1.0+69cbf6ad.lx64.r.cp311)
2026-02-26T02:25:12Z [21,742ms] [Info] [omni.kit.app.plugin] [21.757s] [ext: omni.kit.renderer.core-1.1.0] startup
2026-02-26T02:25:12Z [21,742ms] [Info] [carb] Registered plugin: omni.kit.renderer.plugin (interfaces: [omni::kit::renderer::IGpuFoundation v1.1],[omni::kit::renderer::IRenderer v1.9]) (impl: omni.kit.renderer.plugin)
2026-02-26T02:25:12Z [21,742ms] [Info] [carb] Registered plugin: omni.kit.renderer.ext.plugin (interfaces: [omni::ext::IExt v0.1]) (impl: omni.kit.renderer.ext.plugin)
2026-02-26T02:25:12Z [21,742ms] [Info] [carb] Registered plugin: omni.kit.renderer_test.plugin (interfaces: [omni::kit::renderer::IRendererTest v0.1]) (impl: omni.kit.renderer_test.plugin)
2026-02-26T02:25:12Z [21,742ms] [Info] [carb] Initializing plugin: omni.kit.renderer.ext.plugin (interfaces: [omni::ext::IExt v0.1]) (impl: omni.kit.renderer.ext.plugin)
2026-02-26T02:25:12Z [21,742ms] [Info] [omni.ext.plugin] [ext: omni.kit.renderer.core-1.1.0] Starting ext::IExt in '/home/lucky/isaacsim/extscache/omni.kit.renderer.core-1.1.0+69cbf6ad.lx64.r.cp311/bin/libomni.kit.renderer.ext.plugin.so'
2026-02-26T02:25:12Z [21,742ms] [Info] [carb] Initializing plugin: omni.kit.renderer.plugin (interfaces: [omni::kit::renderer::IGpuFoundation v1.1],[omni::kit::renderer::IRenderer v1.9]) (impl: omni.kit.renderer.plugin)
2026-02-26T02:25:12Z [21,742ms] [Info] [omni.kit.renderer.plugin] Added dataSource connection for prefix '/'
2026-02-26T02:25:12Z [21,749ms] [Info] [carb] Initializing plugin: carb.blockcompression.plugin (interfaces: [carb::blockcompression::BlockCompression v0.2]) (impl: carb.blockcompression.plugin)
2026-02-26T02:25:12Z [21,761ms] [Info] [omni.kit.renderer.plugin] Attaching default app window "Isaac Sim Full 5.1.0"
2026-02-26T02:27:58Z [187,680ms] [Info] [gpu.foundation.plugin] Setting mgpu copy backend to 'copyQueue'

kit_20260225_212450.log

Additional information

No response

[vick-yu]

2026-02-26T02:25:12Z [21,761ms] [Info] [omni.kit.renderer.plugin] Attaching default app window "Isaac Sim Full 5.1.0"
2026-02-26T02:27:58Z [187,680ms] [Info] [gpu.foundation.plugin] Setting mgpu copy backend to 'copyQueue'
...
2026-02-26T02:27:58Z [187,689ms] [Info] [omni.ext.plugin] [ext: omni.kit.renderer.core-1.1.0] started, startup time: 165947 (ms)

So the primary cause visible in the log is: renderer core startup (Vulkan/RTX initialization) blocks the main thread for ~166 seconds after the window is attached.

|---------------------------------------------------------------------------------------------|
| Driver Version: 580.126.09 | Graphics API: Vulkan
|=============================================================================================|
| GPU | Name | Active | LDA | GPU Memory | Vendor-ID | LUID |
| | | | | | Device-ID | UUID |
| | | | | | Bus-ID | |
|---------------------------------------------------------------------------------------------|
| 0 | NVIDIA RTX PRO 5000 Blackwell .. | Yes: 0 | | 24463 MB | 10de | 0 |
| | | | | | 2c38 | ed191c0c.. |
| | | | | | 1 | |
|---------------------------------------------------------------------------------------------|
| 1 | Intel(R) Graphics (ARL) | | | 23629 MB | 8086 | 0 |
| | | | | | 7d67 | 8680677d.. |
| | | | | | 0 | |
|=============================================================================================|
| OS: 24.04.4 LTS (Noble Numbat) ubuntu, Version: 24.04.4, Kernel: 6.17.0-14-generic
| XServer Vendor: The X.Org Foundation, XServer Version: 12101011 (1.21.1.11)
| Processor: Intel(R) Core(TM) Ultra 9 285HX
| Cores: 24 | Logical Cores: 24
|---------------------------------------------------------------------------------------------|
| Total Memory (MB): 31506 | Free Memory: 27110
| Total Page/Swap (MB): 30517 | Free Page/Swap: 30517
|---------------------------------------------------------------------------------------------|

Please try the following to narrow down:

• Try headless/standalone (no GUI) to see if the delay is purely in the window/renderer path.
• Driver/version: Please try one of the recommended versions, 580.65.06 or 580.95.05 as as newer/older drivers can change initialization behavior. For Isaac Sim 5.1.0 and Blackwell, please try 580.65.06 or 580.95.05 as listed in:
  • https://docs.isaacsim.omniverse.nvidia.com/5.1.0/installation/requirements.html#system-requirements
  • https://docs.omniverse.nvidia.com/dev-guide/latest/common/technical-requirements.html#blackwell
• Single-GPU boot (if possible): Booting with only the dGPU active (e.g. BIOS set to discrete-only) can rule out hybrid-GPU interaction at startup.

[yunhorace]

kit_20260227_230201.log

Tried headless, log shows it is ready in 10s but the laptop is still freezed after that.
Now the driver is in 580.95.05, nothing changed, and the isaac sim is not responding after open.

[yunhorace]

Single-GPU boot (if possible): Booting with only the dGPU active (e.g. BIOS set to discrete-only) can rule out hybrid-GPU interaction at startup. This solved the problem. Thank you so much for the reply!