Jetson TX2 用opencv+python打开板载摄像头出错

Hi,
r28.1 is old release. re you able to upgrade to r32 release and try? The latest release is r32.5.1(Jetpack4.5.1).

There is a sample for your reference:
OpenCV Video Capture with GStreamer doesn't work on ROS-melodic - #3 by DaneLLL