Hi,
Please follow this and share which sink is picked:
Gstream not work in AGX Orgin But ok in Xavier NX - #5 by DaneLLL
And possible reasons that display fails in docker:
"No EGL Display" error coming while running deepstream python app inside a docker - #9 by vino_mm
Unable to display images using Open CV when using docker container - #3 by AastaLLL