CSI camera works on Jetpack 4.2 but not on 4.4.1

[JerryChang]

hello jay_kruemcke,

thanks for issue narrow down.
sensor driver initial sequence should works normally if you’re able to see those video devices registered to /dev/,
for example,

@jay_kruemcke

ls /dev/video *
/dev/video0 /dev/video1

you’d also confirmed the basic camera functionality with gstreamer pipeline,
so, you may ensure that camera hardware, its driver and also software stacks all works normally.
for example,

@jay_kruemcke

Camera works fine with g-streamer so it isn’t a hardware issue

gst-launch-1.0 nvarguscamerasrc ! ‘video/x-raw(memory:NVMM),width=3820, height=2464, framerate=21/1, format=NV12’ ! nvvidconv flip-method=0 ! ‘video/x-raw,width=960, height=616’ ! nvvidconv ! nvegltransform ! nveglglessink -e

due to you’re launching camera with a python script.
please also dig into the script file to check which paragraph caused the failures.

there’re also some similar discussion thread, which has resolved camera freezes issue when doing image classification,
please also check Topic 159173, and Topic 158686 for reference,
thanks