Can you provide the .config of precompiled kernels please?

[Dieter]

Hello,
A .config that was used by your kernels would help getting us started much quicker.

I took me quite some time to recognize that I must connect both HDMI and LCD for my own kernels.
Assuming it figures the right one automatically. After I disabled the HDMI Nexell driver, LCD only works.
I think the issue comes from HDMI set fb to 1280x720, so the lcd driver also uses that resolution and therefore fails.
Could also be a bug in lcd driver?

or you can enable this in future:
CONFIG_IKCONFIG and CONFIG_IKCONFIG_PROC
That enables /proc/config.gz

[FATechsupport]

We didn't encounter this issue. Did you try just connecting your board to either an HDMI monitor or an LCD?