Deepstream_python_app failed to run deepstream-test1

Please provide complete information as applicable to your setup.

**• Hardware Platform Jetson nano
**• DeepStream Version 5.1 in container
**• JetPack Version 4.5
**• Issue Type: bugs

Hi,
I’am trying to run deepstream-test1 python exemple inside a container running nvcr.io/nvidia/deepstream-l4t:5.1-21.02-samples image. I follow the instruction to install into this container deepstream_python_apps according to deepstream_python_apps/HOWTO.md at master · NVIDIA-AI-IOT/deepstream_python_apps · GitHub.
when I am trying to run the deepstream-test1 python exemple I got an error:

Blockquote
root@573e5833182c:/opt/nvidia/deepstream/deepstream/sources/deepstream_python_apps/apps/deepstream-test1# python3 deepstream_test_1.py /opt/nvidia/deepstream/deepstream/samples/streams/sample_720p.h264
Creating Pipeline

Creating Source

Creating H264Parser

Creating Decoder

Creating EGLSink

Playing file /opt/nvidia/deepstream/deepstream/samples/streams/sample_720p.h264
Adding elements to Pipeline

Linking elements in the Pipeline

Starting pipeline

Using winsys: x11
Opening in BLOCKING MODE
Opening in BLOCKING MODE
ERROR: Deserialize engine failed because file path: /opt/nvidia/deepstream/deepstream-5.1/sources/deepstream_python_apps/apps/deepstream-test1/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine open error
0:00:05.364425751 1183 0x1d572cf0 WARN nvinfer gstnvinfer.cpp:616:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1691> [UID = 1]: deserialize engine from file :/opt/nvidia/deepstream/deepstream-5.1/sources/deepstream_python_apps/apps/deepstream-test1/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine failed
0:00:05.364513357 1183 0x1d572cf0 WARN nvinfer gstnvinfer.cpp:616:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:1798> [UID = 1]: deserialize backend context from engine from file :/opt/nvidia/deepstream/deepstream-5.1/sources/deepstream_python_apps/apps/deepstream-test1/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine failed, try rebuild
0:00:05.364557421 1183 0x1d572cf0 INFO nvinfer gstnvinfer.cpp:619:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1716> [UID = 1]: Trying to create engine from model files
WARNING: INT8 not supported by platform. Trying FP16 mode.
INFO: [TRT]: Some tactics do not have sufficient workspace memory to run. Increasing workspace size may increase performance, please check verbose output.
INFO: [TRT]: Detected 1 inputs and 2 output network tensors.
0:00:42.935463289 1183 0x1d572cf0 INFO nvinfer gstnvinfer.cpp:619:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1749> [UID = 1]: serialize cuda engine to file: /opt/nvidia/deepstream/deepstream-5.1/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_fp16.engine successfully
INFO: [Implicit Engine Info]: layers num: 3
0 INPUT kFLOAT input_1 3x368x640
1 OUTPUT kFLOAT conv2d_bbox 16x23x40
2 OUTPUT kFLOAT conv2d_cov/Sigmoid 4x23x40

0:00:43.315557817 1183 0x1d572cf0 INFO nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus: [UID 1]: Load new model:dstest1_pgie_config.txt sucessfully
NvMMLiteOpen : Block : BlockType = 261
NVMEDIA: Reading vendor.tegra.display-size : status: 6
NvMMLiteBlockCreate : Block : BlockType = 261
Frame Number=0 Number of Objects=5 Vehicle_count=3 Person_count=2
0:00:44.095026918 1183 0x1ca98d40 WARN nvinfer gstnvinfer.cpp:1984:gst_nvinfer_output_loop: error: Internal data stream error.
0:00:44.095174162 1183 0x1ca98d40 WARN nvinfer gstnvinfer.cpp:1984:gst_nvinfer_output_loop: error: streaming stopped, reason error (-5)
Error: gst-stream-error-quark: Internal data stream error. (1): /dvs/git/dirty/git-master_linux/deepstream/sdk/src/gst-plugins/gst-nvinfer/gstnvinfer.cpp(1984): gst_nvinfer_output_loop (): /GstPipeline:pipeline0/GstNvInfer:primary-inference:
streaming stopped, reason error (-5)

Blockquote

thank for your help

sincerely

DeepStream 5.1 needs JetPack 4.5.1, plesae make sure your JetPack version is 4.5.1

Hi,
thx for your answer but I do have the JetPack 4.5.1.

Blockquote
dpkg-query --show nvidia-l4t-core
nvidia-l4t-core 32.5.1.20210219084526

Any other idea ?
Thx again
Sincerely

I can not reproduce your error. Please tell us how to reproduce the failure.

Found a solution,
to access to the display docker needs some parameters.
now it’s working properly!
thx for your help