Lakka and rgb-pi

Hello:

I try to configure my raspberry pi 4 with lakka software and send the output signal by a rgb-pi hardware. I tried these 2 configurations (copying the rgb-pi.dtbo file into overlays folder) but does not work.

dtparam=audio=on
dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2
dtoverlay=rgb-pi
enable_dpi_lcd=1
display_default_lcd=1
dpi_output_format=6
dpi_group=2
dpi_mode=87
hdmi_timings=320 1 16 30 34 240 1 2 3 22 0 0 0 60 0 6400000 1
dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2
dtoverlay=rgb-pi
enable_dpi_lcd=1
display_default_lcd=1
dpi_output_format=6
dpi_group=2
dpi_mode=87
hdmi_timings=1920 1 152 247 280 240 1 3 7 12 0 0 0 60 0 40860000 1

How i can do to use lakka with rgb-pi?

Thank you.