echo "" > /sys/class/graphics/fb1/overlays
echo 0 > /sys/class/graphics/fb0/overlays
echo 1 > /sys/class/graphics/fb1/overlays
+ # for system menu, etc
echo 2 > /sys/class/graphics/fb2/overlays
+ echo "lcd" > overlay2/manager
echo 1 > overlay0/enabled
}