Dual IMX477 cameras not working

Canonical Ubuntu Ubuntu OS issues
1

Hi,
I can’t use 2 High Quality Camera IMX477 cameras at the same time.
Each work separately however when I run them both together they stop working.
In terminal 1 I run

gst-launch-1.0 -e qtiqmmfsrc camera=0 name=camsrca ! "video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1" ! queue ! fakesink

and it starts running
then in terminal 2 I run

gst-launch-1.0 -e qtiqmmfsrc camera=1 name=camsrcb ! "video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1" ! queue ! fakesink

and the pipeline in terminal 1 freezes and the one in terminal 2 never starts and just hangs.

If I run the pipeline with

video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1

I can run both at the same time, however the datasheet says the chip supports 2x 22MP steams in the ISP?

I have followed the instructions here

log.txt (2.0 MB)

2

for ubuntu release, please kindly refer to ubuntu doc for camera: Camera Serial Interface (CSI) | RUBIK Pi Documentation

as I remember, you can do 4k & 1080HD for IMX477, but not two 4k at the same time for streaming.

3

The docs does not state it is not supported. Do you know if it possible to support 2x 4k30 with support from Qualcomm?

4

RubikPi does not support simultaneous 4K output from two IMX477, as the Qualcomm 6490P platform does not support it.