I have installed Jetpack 4.2.1 on xavier and download DeepStream 4.0 SDK from https://developer.nvidia.com/deepstream-download. but i can not run the sample.because of the missing libnvbufsurface.so.1.0.0.
and here is the log
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.923: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_dsexample.so': libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.926: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_infer.so': libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.972: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_segvisual.so': libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.974: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_tracker.so': libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.975: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_multistream.so': libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.985: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_dewarper.so': libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.988: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_ofvisual.so': libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:7428): GStreamer-WARNING **: 16:44:56.989: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_multistreamtiler.so': libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory
nvbuf_utils: Could not get EGL display connection
One element could not be created. Exiting.
by the way ,for this:nvbuf_utils: Could not get EGL display connection (can I use ssh to run the sample application?)