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ali88z
Participant
Participant
580 Views
Registered: ‎06-14-2019

MCU hang when HDMI(RX) cable is disconnected under ultralow latency mode

We are using Zynq UltrasScale+ MPSOC and gstreamer to develop our h265
encoding application. It works fine in most cases. But if we disconnect HDMI
cable while encoding under ultralow latency mode(set caps "memory:XLNXLL"),
kernel print "Mcu trace: Channel has hang" and we can't start encode again.
How to fix it?

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2 Replies
nathanx
Moderator
Moderator
407 Views
Registered: ‎08-01-2007

The "Mcu trace: Channel has hang" message might be due to camera unconnected, can you observe the same message in the other VCU latency mode? 

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ali88z
Participant
Participant
398 Views
Registered: ‎06-14-2019

It's caused by HDMI cable unconnected. I think it's same meaning to your "camera unconnected".

The message is only displayed under ultralow latency mode.

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