Impossible to have a display via the HDMI output of the PICO-IMX8MQ (flashed with ubuntu 20.04)

[Hpot]

I flashed my pico imx8mq with a technexion ubuntu 20.04 prebuild (https://developer.technexion.com/docs/ubuntu-2204-releasenotes#prebuilt-images-available-for-downloa...).

Once turned on, I connected to the pico terminal with this command and logged:

picocom -b 115200 -r -l /dev/ttyUSB0.

I would like to connect my screen to it via HDMI (classic 1920*1080 screen). But I have this error message (screen below). and the xrandr command does not show me any HDMI connection. Maybe it has a link with the screen resolution?

Thanks in advance, 

Best regards !

[brian14 · Accepted solution]

Hi @Hpot, 

Thank you for contacting NXP Support.

Since you are using a board and software from Technexion I suggest you contact their support. They should give you the best support.

Have a great day!