The error message “nvbuf_utils: Could not get EGL display connection” does appear because I’ve logged into ubuntu with nomachine ? anyway,today finally has come to my home an HDMI to DVI cable and I can use the nano also without nomachine,because it works with an old VGA/DVI monitor that I had. Yes,you are right,when I run this command " ./test-launch “videotestsrc ! nvvidconv ! nvv4l2h264enc ! h264parse ! rtph264pay name=pay0 pt=96” I don’t get the error message “nvbuf_utils: Could not get EGL display connection” and this is the proof that this error happens when I use the nano in headless mode,as I have told you in the previous message. Anyway,your command print on the screen of the terminal 1 this message :
opening in BLOCKING MODE
NvMMLiteOpen : Block : BlockType = 4
NVMEDIA : NVENC
H264: profile = 66 , level = 0
I have also opened another terminal window where I have issued your second command,like this :
gst-launch-1.0 uridecodebin uri=rtsp://127.0.0.1:8554/test ! nvoverlaysink
Setting pipeline to PAUSED …
Pipeline is live and does not need PREROLL …
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://127.0.0.1:8554/test
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
Progress: (request) SETUP stream 0
Progress: (open) Opened Stream
Setting pipeline to PLAYING …
New clock: GstSystemClock
Progress: (request) Sending PLAY request
Progress: (request) Sending PLAY request
Progress: (request) Sent PLAY request
Opening in BLOCKING MODE
NvMMLiteOpen : Block : BlockType = 261
NVMEDIA: Reading vendor.tegra.display-size : status: 6
NvMMLiteBlockCreate : Block : BlockType = 261
^Chandling interrupt.
Interrupt: Stopping pipeline …
Execution ended after 0:00:38.665120593
Setting pipeline to PAUSED …
Setting pipeline to READY …
Setting pipeline to NULL …
Freeing pipeline …
and I’ve got the same picture as before.