Deepstream 6.0 Sample File Error

Hi,

I am currently facing the following issue when running the sample file for Deepstream 6.0. I was following the documentations from Quickstart Guide — DeepStream 6.0 Release documentation under DGPU setup for Ubuntu. I was testing on all the .txt file in configs folder and all giving the same error. May I know what is the exact issue and how can I go about it?

OS: Ubuntu 18.0
CUDA: 11.4
TensorRT: 8.0.1
Driver: 470.57.02

ERROR: ../nvdsinfer/nvdsinfer_model_builder.cpp:1484 Deserialize engine failed because file path: /opt/nvidia/deepstream/deepstream-6.0/samples/configs/deepstream-app/../../models/Primary_Detector/resnet10.caffemodel_b60_gpu0_int8.engine open error
0:00:00.429394556 11549 0x7f055c002390 WARN                 nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1889> [UID = 1]: deserialize engine from file :/opt/nvidia/deepstream/deepstream-6.0/samples/configs/deepstream-app/../../models/Primary_Detector/resnet10.caffemodel_b60_gpu0_int8.engine failed
0:00:00.429452496 11549 0x7f055c002390 WARN                 nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:1996> [UID = 1]: deserialize backend context from engine from file :/opt/nvidia/deepstream/deepstream-6.0/samples/configs/deepstream-app/../../models/Primary_Detector/resnet10.caffemodel_b60_gpu0_int8.engine failed, try rebuild
0:00:00.429461447 11549 0x7f055c002390 INFO                 nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1914> [UID = 1]: Trying to create engine from model files
WARNING: [TRT]: Detected invalid timing cache, setup a local cache instead
ERROR: ../nvdsinfer/nvdsinfer_model_builder.cpp:1456 Serialize engine failed because of file path: /opt/nvidia/deepstream/deepstream-6.0/samples/models/Primary_Detector/resnet10.caffemodel_b60_gpu0_int8.engine opened error
0:00:36.794835873 11549 0x7f055c002390 WARN                 nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1942> [UID = 1]: failed to serialize cude engine to file: /opt/nvidia/deepstream/deepstream-6.0/samples/models/Primary_Detector/resnet10.caffemodel_b60_gpu0_int8.engine
INFO: ../nvdsinfer/nvdsinfer_model_builder.cpp:610 [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         

0:00:36.802697250 11549 0x7f055c002390 INFO                 nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus:<primary_gie> [UID 1]: Load new model:/opt/nvidia/deepstream/deepstream-6.0/samples/configs/deepstream-app/config_infer_primary.txt sucessfully

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**PERF:  FPS 0 (Avg)	FPS 1 (Avg)	FPS 2 (Avg)	FPS 3 (Avg)	FPS 4 (Avg)	FPS 5 (Avg)	FPS 6 (Avg)	FPS 7 (Avg)	FPS 8 (Avg)	FPS 9 (Avg)	FPS 10 (Avg)	FPS 11 (Avg)	FPS 12 (Avg)	FPS 13 (Avg)	FPS 14 (Avg)	FPS 15 (Avg)	FPS 16 (Avg)	FPS 17 (Avg)	FPS 18 (Avg)FPS 19 (Avg)	FPS 20 (Avg)	FPS 21 (Avg)	FPS 22 (Avg)	FPS 23 (Avg)	FPS 24 (Avg)	FPS 25 (Avg)	FPS 26 (Avg)	FPS 27 (Avg)	FPS 28 (Avg)	FPS 29 (Avg)	
**PERF:  0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	
** INFO: <bus_callback:194>: Pipeline ready

cuGraphicsGLRegisterBuffer failed with error(304) gst_eglglessink_cuda_init texture = 1
0:00:37.413144341 11549 0x55de1e796400 WARN                 nvinfer gstnvinfer.cpp:2288:gst_nvinfer_output_loop:<primary_gie> error: Internal data stream error.
0:00:37.413165666 11549 0x55de1e796400 WARN                 nvinfer gstnvinfer.cpp:2288:gst_nvinfer_output_loop:<primary_gie> error: streaming stopped, reason not-negotiated (-4)
ERROR from primary_gie: Internal data stream error.
Debug info: gstnvinfer.cpp(2288): gst_nvinfer_output_loop (): /GstPipeline:pipeline/GstBin:primary_gie_bin/GstNvInfer:primary_gie:
streaming stopped, reason not-negotiated (-4)
Quitting
ERROR from sink_bin_queue: Internal data stream error.
Debug info: gstqueue.c(988): gst_queue_handle_sink_event (): /GstPipeline:pipeline/GstBin:processing_bin_0/GstBin:sink_bin/GstQueue:sink_bin_queue:
streaming stopped, reason not-negotiated (-4)
ERROR from preprocess0: Internal data stream error.
Debug info: gstnvdspreprocess.cpp(1627): gst_nvdspreprocess_output_loop (): /GstPipeline:pipeline/GstBin:preprocess_bin/GstNvDsPreProcess:preprocess0:
streaming stopped, reason not-negotiated (-4)
App run failed

Which GPU you are using?

NVIDIA Corporation TU106M [GeForce RTX 2070 Mobile]

cudaErrorOperatingSystem = 304

This error indicates that an OS call failed.

You need to run from desktop or run from terminal, need export display first.
export DISPLAY=:0 or 1 //xrandr to check if display exported or not.
also you need to fix above error. you should have some display driver setting or install issue. how about results of:
dpkg -l|grep nvidia

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