Deepstream 6.1 installation issues in the Quick Start Guide article

[pngstar777]

• Hardware Platform (Jetson / GPU)
T4 ( GPU )
• DeepStream Version
6.1
• TensorRT Version
8.2.5.1-1+cuda11.4 or 8.4.1.5-1+cuda11.6
• NVIDIA GPU Driver Version (valid for GPU only)
510.47.03
• Issue Type( questions, new requirements, bugs)
question
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)
When cuda 11.6.1 is installed, tensorRT can only be installed in the tar method due to the dependency problem of 8.2.5.1 installation. Isn’t this documentation incorrect?

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_Quickstart.html#install-tensorrt-8-2-5-1

Which TensorRT version is correct for Deepstream 6.1?
Or CUDA 11.6.1 version is wrong?
Please answer about my question.

[yuweiw]

Hi, @pngstar777 . So after cuda 11.6.1 is installed, what error was encountered with which installation command? Thanks

[pngstar777]

Hi, @yuweiw . There’s no error msg.
TensorRT version is installed as 8.4.1.5, not 8.2.5.1.
The guide document’s TensorRT version is 8.2.5.1.
I have two questions.
Do you recommend TensorRT 8.2.5.1 version? And can it be installed?
If version 8.4.1.5 is recommended, is there a problem with the version of the guide document?

[yuweiw]

We suggest TensorRT 8.2.5.1 as our guide says. You can find the version in our guide. We develop and debug the DeepStream 6.1 code in this env, so it could have better compatibility when you use the version we recommended. Thanks

• Ubuntu 20.04
• GStreamer 1.16.2
• NVIDIA driver 510.47.03
• CUDA 11.6 Update 1
• TensorRT 8.2.5.1

[pngstar777]

Is there TensorRT 8.2.5.1 for cuda11.6?
I can’t install TensorRT 8.2.5.1 on my Ubuntu OS.

[yuweiw]

You can download the tensorrt 8.2.5.1 and install it by dpkg command.
This combination for deepstream in our guide is QA verified. So we sugget you install it by referring our guide. Thanks
https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_Quickstart.html#install-tensorrt-8-2-5-1

[pngstar777]

I tried this command. but tensorrt 8.4.1.5-1+cuda11.6 is installed on my Ubuntu OS.
How can I fix this Issue?

[yuweiw]

How do you intall tensorrt and cuda before? If you use apt-get install command, you can just use the apt-get pure command to remove the app.
You can refer the link below:
https://askubuntu.com/questions/187888/what-is-the-correct-way-to-completely-remove-an-application

[pngstar777]

thx for your help. I’ll try and reply.

[yuweiw]

Hi @pngstar777 ， Is your env ready now？ Thanks

[yingliu]

There is no update from you for a period, assuming this is not an issue anymore.
Hence we are closing this topic. If need further support, please open a new one.
Thanks