@jesper I’m not sure we have the device overlay for the non-square version in balenaOS but can you try adding (or changing) the “define DT overlays” value to hyperpixel4-pi3 - if that doesn’t work you may need to compile them and copy to /mnt/overlays before provisioning as was done in this thread: HyperPixel 2.1 Round Display Support for the round Hyperpixel.