Deepstream-app run failed

Hi, I am running deepstream sample with nvcr.io/nvidia/deepstream:5.0-dp-20.04-triton on
a remote server. I used mobaxterm to ssh into it.
I have the following error. How to fix it?

root@0ac40f5e712a:/opt/nvidia/deepstream/deepstream-5.0/samples/configs/deepstream-app-trtis# export DISPLAY=:0
root@0ac40f5e712a:/opt/nvidia/deepstream/deepstream-5.0/samples/configs/deepstream-app-trtis# deepstream-app -c source1_primary_detector.txt
2020-05-03 00:20:54.006530: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library libcudart.so.10.2
No protocol specified
No protocol specified
No protocol specified
No protocol specified
No protocol specified
No protocol specified
** ERROR: main:651: Failed to set pipeline to PAUSED
Quitting
App run failed

Hi
xrandr to see if DISPLAY set or not, before you run docker, first run xhost +