Hi,
Yea, I found it like 2 days ago and it seems pretty similar to my use case like you say! Thing is with them it was the aux line which were swapped. I double checked my case and it is correctly connected ( the dp_aux_ch2_p is connected to the Clock signal from connector, meanwhile the dp_aux_ch2_N is connected to Data).
So i guess it’s back to checking hardware.
Tho, one thing i realised is that my GPIO state is always “hi” even when I unplugged the HDMI. I used this command to read gpio PM.00 state: cat /sys/kernel/debug/gpio | grep PM.00. Is it normal?
Thank you!
Loic