Isaac Sim ViewPort display abnormality

Isaac Sim Version

4.2.0

Operating System

Ubuntu 22.04

GPU Information

  • Model: A6000 * 3

  • Driver Version: 550.120

  • Cuda Version: V11.5.119

Topic Description

Detailed Description

If it’s not running, everything looks good, but if it’s running, the viewport window will go black or flash.

Steps to Reproduce

Just run the official example:

Isaac Examples → ROS2 → Isaac ROS → Sample Scene

Error Messages

There are no error outputs on the command line.

Screenshots or Videos


@Vulcan.Shao Can you start isaac sim with these flags:
--/rendergraph/mgpu/backend=copyQueue --/app/gatherRenderResults=1 --/app/uiGather=0

If this works its likely because IOMMU is not disabled in the BIOS, you should see a warnings/message in the terminal when starting up isaac sim. Disabling IOMMU should also resolve the issue.

1 Like

Thank you very much, Hammad_S and your colleagues, for your prompt response and resolution of my issue. I have successfully tested this method and it has resolved my problem. Thanks.
Also, I would like to take this opportunity to inquire if the example of subscribing to image messages on a 3-card A6000 server can only run at around 30fps. Is this due to ROS data communication slowing down the entire program? I think my hardware configuration is already very good.
Looking forward to your reply or suggestion. Sincerely thank you!

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