“Set screen resolution to 2560x1440”
in my instructions i never tell you to do that.
- try using LITE OS version
- try specifing cameras
[all]
dtoverlay=vc4-kms-v3d,cma-512
dtoverlay=arducam-64mp,cam0
dtoverlay=arducam-64mp,cam1 - try this guys instruction flow Full Walkthrough: Setup RPI4 take 64mp photos and Control Focus