Using 3 or 4 usb camera fail

[iliesaya]

Hi , I am trying to connect 4 USB camera (Arducam 8MP 1080P Auto Focus USB Camera Module) on the Xavier NX.
The first 2 camera works, but the third one fail with :

'Could not initialize camera. Please see error trace.')

if I try to preview the camera with
gst-launch-1.0 -v v4l2src device=/dev/video2 ! jpegdec ! video/x-raw,format=I420,framerate=30/1,width=1280,height=720 ! videoconvert ! xvimagesink

the two first device works, but the third fail with

"Buffer pool activation failed"

Is there a way the lower the frame rate or to use MJPG to get the 4 camera running ?

`v4l2-ctl --list-formats-ext --device /dev/video1
ioctl: VIDIOC_ENUM_FMT
	Index       : 0
	Type        : Video Capture
	Pixel Format: 'MJPG' (compressed)
	Name        : Motion-JPEG
		Size: Discrete 640x480
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 320x180
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 320x240
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 424x240
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 640x360
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 848x480
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 960x540
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 1280x720
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 1600x1200
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 1920x1080
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 2592x1944
			Interval: Discrete 0.067s (15.000 fps)
		Size: Discrete 3264x2448
			Interval: Discrete 0.067s (15.000 fps)

	Index       : 1
	Type        : Video Capture
	Pixel Format: 'YUYV'
	Name        : YUYV 4:2:2
		Size: Discrete 640x480
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 320x180
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 320x240
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 2592x1944
			Interval: Discrete 0.500s (2.000 fps)
		Size: Discrete 1920x1080
			Interval: Discrete 0.200s (5.000 fps)
		Size: Discrete 3264x2448
			Interval: Discrete 0.500s (2.000 fps)`

[astekardis]

@iliesaya Did you ever solve this?

[iliesaya]

@iliesaya Did you ever solve this?

No, I used 2 mipi and 2 USB camera