Hi Kalkov,
Tried this settings( and many more)
See startup and then ...Still the same message("Unsupported signal check your device input"),
What am I missing ?
It then keeps looping the startup
hdmi_group=1
hdmi_drive=2
hdmi_mode=19
hdmi_cvt=1280 720 50 1 0 0 0
hdmi_force_hotplug=1
disable_overscan=1
dtoverlay=vc4-kms-v3d,cma-256
avoid_warnings=2
dtparam=audio=on
dtparam=i2c1=on
dtparam=i2c_arm=on
audio_pwm_mode=2
initial_turbo=30
start_x=1
kernel=u-boot.bin
any help ?
Regards