V4l2 can capture raw picture, but nvgstcapture can not display the video stream

Robotics & Edge Computing Jetson Systems Jetson Xavier NX
1

The same sensor behaves differently on different boards, the following:
NX board: v4l2 can capture raw picture, but nvgstcapture can not display the video stream
TX2 board: v4l2 can capture raw picture, nvgstcapture can display the video stream

NX board：
$ nvgstcapture

The Mipi signal can be measured by the oscilloscope, but nvgstcapture can not display the video stream

$ dmesg > dmesg.txt

dmesg.txt and sensor dts file in the attachment, the following:
dmesg.txt (71.5 KB)
tegra194-camera-jakku-rbpcv2-imx304.dtsi.txt (1.9 KB)
tegra194-camera-rbpcv2-imx304.dtsi.txt (8.9 KB)

3

Could you check the trace log for the failed case.
And if you can try boost the nvcsi/vi/isp clocks to try first.

4 
$ echo 1 > /sys/kernel/debug/tracing/tracing_on
$ echo 30720 > /sys/kernel/debug/tracing/buffer_size_kb
$ echo 1 > /sys/kernel/debug/tracing/events/tegra_rtcpu/enable
$ echo 1 > /sys/kernel/debug/tracing/events/freertos/enable
$ echo 2 > /sys/kernel/debug/camrtc/log-level
$ echo 1 > /sys/kernel/debug/tracing/events/camera_common/enable
$ echo > /sys/kernel/debug/tracing/trace

$ nvgstcapture
$ cat /sys/kernel/debug/tracing/trace > trace.txt

trace.txt, the following:
trace.txt (28.1 KB)

How to boost the nvcsi/vi/isp clocks?

5

Check this for boost the clocks Jetson TX2 Camera BringUp - eLinux.org

From the trace log csi/vi didn’t receive any validate package from the MIPI bus.
Could you try have daemon run as infinite timeout mode.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fjetson_xavier_camera_soft_archi.html%23wwpID0ESHA

6

1. To boost the clocks:

$ sudo su
$ echo 1 > /sys/kernel/debug/bpmp/debug/clk/vi/mrq_rate_locked
$ echo 1 > /sys/kernel/debug/bpmp/debug/clk/isp/mrq_rate_locked
$ echo 1 > /sys/kernel/debug/bpmp/debug/clk/nvcsi/mrq_rate_locked
$ cat /sys/kernel/debug/bpmp/debug/clk/vi/max_rate |tee /sys/kernel/debug/bpmp/debug/clk/vi/rate
460800000
$ cat /sys/kernel/debug/bpmp/debug/clk/isp/max_rate | tee  /sys/kernel/debug/bpmp/debug/clk/isp/rate
576000000
$ cat /sys/kernel/debug/bpmp/debug/clk/nvcsi/max_rate | tee /sys/kernel/debug/bpmp/debug/clk/nvcsi/rate
300000000

2. enabled trace:

$ echo 1 > /sys/kernel/debug/tracing/tracing_on
$ echo 30720 > /sys/kernel/debug/tracing/buffer_size_kb
$ echo 1 > /sys/kernel/debug/tracing/events/tegra_rtcpu/enable
$ echo 1 > /sys/kernel/debug/tracing/events/freertos/enable
$ echo 2 > /sys/kernel/debug/camrtc/log-level
$ echo 1 > /sys/kernel/debug/tracing/events/camera_common/enable
$ echo > /sys/kernel/debug/tracing/trace

3. daemon run as infinite timeout mode, and then run nvgstcapture cmd

$ sudo service nvargus-daemon stop
$ sudo enableCamInfiniteTimeout=1 nvargus-daemon
   === NVIDIA Libargus Camera Service (0.97.3)=== Listening for connections...
    === nvgstcapture[7136]: Connection established (7F900971D0)OFParserListModules: module list: /proc/device-tree/tegra-camera-platform/modules/module0
    NvPclHwGetModuleList: WARNING: Could not map module to ISP config string
    NvPclHwGetModuleList: No module data found
    OFParserGetVirtualDevice: NVIDIA Camera virtual enumerator not found in proc device-tree
    ---- imager: Found override file [/var/nvidia/nvcam/settings/camera_overrides.isp]. ----
    CAM: serial no file already exists, skips storing again=== nvgstcapture[7136]: CameraProvider initialized (0x7f888117f0)CAM: serial no file already exists, skips storing again
    === nvgstcapture[7136]: Connection closed (7F900971D0)=== nvgstcapture[7136]: WARNING: CameraProvider was not destroyed before client connection terminated.=== nvgstcapture[7136]:          The client may have abnormally terminated. Destroying CameraProvider...=== nvgstcapture[7136]: CameraProvider destroyed (0x7f888117f0)=== nvgstcapture[7136]: WARNING: Cleaning up 1 outstanding requests...=== nvgstcapture[7136]: WARNING: Cleaning up 1 outstanding streams...SCF: Error InvalidState: 2 buffers still pending during EGLStreamProducer destruction (propagating from src/services/gl/EGLStreamProducer.cpp, function freeBuffers(), line 306)
    SCF: Error InvalidState:  (propagating from src/services/gl/EGLStreamProducer.cpp, function ~EGLStreamProducer(), line 50)
    === nvgstcapture[7136]: WARNING: Cleaning up 1 outstanding stream settings...=== nvgstcapture[7136]: WARNING: Cleaning up 1 outstanding sessions...

but nvgstcapture can not display the video stream

4. trace log

$ cat /sys/kernel/debug/tracing/trace > trace.txt

trace.txt (51.4 KB)

7

The trace log shows the same as before.
Could you configure the sensor as discontinuous clocks to try.

8

no, this sensor is not supported discontinuous clocks mode