CM5 Kiosk render Issue

Running the GitHub - nerves-web-kiosk/kiosk_example: Example web kiosk using Nerves
with {:kiosk_system_rpi5, "~> 0.2.1", runtime: false, targets: :rpi5}

RPI CM5 4GB RAM eMMC

I use the Waveshare CM5-PoE-BASE-A
I tested with an 7.0 inch HDMI Display_A05 (on the picture)
and a 2.5 K portable display
and my 4K LG 27 " Monitor
The rendering is wrong on all of them.
If Weston is killed, the iex shell looks normal.

Startup logs with 7 inch:

The ideal resolution for the 7 inch would be 1024×600 and 30 frames would be enough if you know how to enforce that, I would appreciate a hint :smiley:

Since I can not upload the picture here, take a look on the GitHub Issue:

Added my suggestion for how to configure weston in the issue: CM5 boot loop · Issue #8 · nerves-web-kiosk/kiosk_example · GitHub