We are having some problems using the Toradex Easy Installer in our custom hardware. We are using the Apalis imx8 module mounted in our custom hardware without HDMI.
When we connect to the serial console with a standard Apalis module, we cannot write anything.
We have prepared a SD card with the Toradex Easy Installer (Apalis iMX8 5.7.2+build.14), overlays.txt modified (“fdt_overlays=”, without hdmi dtbo) and a custom image with autoinstall = true. With this SD card we can write to the serial console and hope that our image is installed, but the vnc server is not running and we cannot check the installation process. We wait a long time and then reboot, but our custom image is not installed.
We notice that we have a different error code compared to ixora.
With our hardware:
[ 20.594093] [drm:cdns_hdmi_get_edid_block] ERROR get block edid failed: -110
[ 20.601653] [drm:cdns_hdmi_connector_get_modes] ERROR Invalid edid
[ 4.916885] [drm:cdns_hdmi_get_edid_block] ERROR Get block edid failed: -22
[ 4.924310] [drm:cdns_hdmi_connector_get_modes] ERROR Invalid edid
So our question is, do we need a HDMI to run the Easy Installer? Or do we have some other unknown problem?