Recalbox v18.x with Tontec 3.5" Edit Recalbox.conf vi recalbox.conf Config system.fbcp.enabled { default: 0, setup: 1 } global.videomode { default: CEA 4 HDMI, setup: default } Edit /boot/config.txt mount -o remount, rw /boot vi /boot/config.txt Config dtparam=spi=on dtoverlay=mz61581