The problem its than I need to add more memory to the dtoverlay vc4-kms-v3d overlay and I tried by three ways.
1) with "dtoverlay=vc4-kms-v3d,cma-256" on config.txt
2) with "[email protected]" on cmdline.txt
none of these "solutions" give me any help on this topic.
I use gpu_mem=64 because that doesn't effects my layer memory bandwidth.
maybe I need to unpack and edit the .dtbo?
Hope some help here!!