When I used isaacsim on DGX Spark, I encountered the same error as discussed below. Also, in my simulation scenario, I couldn’t obtain sensor data through ROS2. Furthermore, when I tried to view the sensor topic data using ROS2 commands, I found that there was no publisher. Could you please confirm if DGX Spark supports the rendering of this sensor data
When I use the differential controller to control the two-wheeled differential chassis of the robot, I found that when the differential controller receives a left turn speed command, it still outputs straight-line movement data. For example, if I send a “turn_left” movement command through the /cmd_vel topic data, the Differential Controller outputs a “backward” speed command. When I send a “turn_right” movement command, the Differential Controller outputs a “backward and forward” speed command. Why is this happening? Why does this problem occur
Let’s use this topic to track the “scenes too dark” issue. Could you please share screenshots of the problem and attach the full logs so we can review them?
For the other questions, please create separate topics so each issue can be investigated and tracked independently.
To help triage the dark screen issue, could you please provide additional information about your setup - GPU and driver, optix library , isaac sim and cuda version,
Wed Dec 31 09:09:22 2025
±----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.95.05 Driver Version: 580.95.05 CUDA Version: 13.0 |
±----------------------------------------±-----------------------±---------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA GB10 On | 0000000F:01:00.0 Off | N/A |
| N/A 37C P8 4W / N/A | Not Supported | 0% Default |
| | | N/A |
±----------------------------------------±-----------------------±---------------------+
±----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 3615 G /usr/lib/xorg/Xorg 74MiB |
| 0 N/A N/A 3752 G /usr/bin/gnome-shell 69MiB |
±----------------------------------------------------------------------------------------+
DGX_NAME=“DGX Spark”
DGX_PRETTY_NAME=“NVIDIA DGX Spark”
DGX_SWBUILD_DATE=“2025-09-10-13-50-03”
DGX_SWBUILD_VERSION=“7.2.3”
DGX_COMMIT_ID=“833b4a7”
DGX_PLATFORM=“DGX Server for KVM”
DGX_SERIAL_NUMBER=“1983725001893”
DGX_OTA_VERSION=“7.3.1”
DGX_OTA_DATE=“Wed Nov 19 06:18:25 PM CST 2025”
Thank you for your reply. My CUDA version is 13.0, and the driver version is 580.95.05. Additionally, I am using the arm version of isaacsim at 5.1.0. The overall configuration requirements are consistent with the document below. However, when running the scenario, the phenomena and errors encountered are the same as described below, and the sensor data cannot be read using ROS2, and there is even no publisher
