Cannot turn on camera on Jetson Nano 4GB

[wi072815]

Hello forums! I bought jetson nano 4GB which has model name P3450 and a IMX219-120 camera . I used opencv2 to start interacting with camera but it didn’t work. The error said that it cannot find camera by index.?

[ShaneCCC]

Does the sensor driver probe successfully?
Have a check with v4l2-ctl --list-devices. Also check the kernel message by " dmesg | grep -i imx219"

[wi072815]

Thanks for your response !
I got this message when typing this line “v4l2-ctl --list-devices”

vi-output, imx219 8-0010 (platform:54080000.vi:4):
/dev/video0

and here is the message I got from this command “dmesg | grep -i imx219”

luggage@localhost:~$ dmesg | grep -i imx219
[ 1.243990] imx219 7-0010: tegracam sensor driver:imx219_v2.0.6
[ 1.267363] imx219 7-0010: imx219_board_setup: error during i2c read probe (-121)
[ 1.267391] imx219 7-0010: board setup failed
[ 1.267452] imx219: probe of 7-0010 failed with error -121
[ 1.267854] imx219 8-0010: tegracam sensor driver:imx219_v2.0.6
[ 1.477565] vi 54080000.vi: subdev imx219 8-0010 bound

[ShaneCCC]

Could you confirm if below command working well?

v4l2-ctl --stream-mmap--set-ctrl bypass_mode=0

Also what’s you command to launch camera? Have you try sensor-id=1?

[wi072815]

No the command resulted in

v4l2-ctl: unrecognized option ‘–stream-mmap–set-ctrl’
Unknown argument ‘bypass_mode=0’

I used opencv to turn on camera as well as chess webcam booth.

[ShaneCCC]

It’s could be the command line not type correct.
I don’t think the bayer sensor(imx219) can support chess webcam.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/jetson_xavier_camera_soft_archi.html#wwconnect_header

[wi072815]

Hi ! The command v4l2-ctl --stream-mmap --set-ctrl bypass_mode=0
gave me this message
“VIDIOC_REQBUFS: failed: Device or resource busy”

[ShaneCCC]

Some APP acquire the video# node.
Try reboot the system and try it first.

[wi072815]

Jetson nano can detect my camera now but I cannot turn on camera. I followed CSI-Camera instruction.
This command " gst-launch-1.0 nvarguscamerasrc sensor_id=0" gave me

Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:551 Failed to create CameraProvider

I tried “python test.py” and it showed “can’t open camera by index”

[ShaneCCC]

It’s original system image? what’s the version?

[wi072815]

Yes I downloaded from official website? Here is the information of my system

[ShaneCCC]

Check the BSP version by

cat /etc/nv_tegra_release

[wi072815]

Here is message i got

[ShaneCCC]

How about the sensor-id =1?

gst-launch-1.0 nvarguscamerasrc sensor-id=1 ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! xvimagesink sync=false

[wi072815]

It gives me the window of name gst-launch-1.0 but didn’t show up any image from the camera?

[ShaneCCC]

Any message from the launch console?

[wi072815]

Yes, it gave me this message

[ShaneCCC]

Does your Nano have two camera connector? Try to connect to another connector.

[wi072815]

OK I will try it! Thanks for your quick response

[wi072815]

I switched to another camera connector but still got this window

And the message from terminal is CONSUMER: Producer has connected; continuing