This is the only way the touchscreen LCD at my Raspberry Pi 3 turns on and off:
vcgencmd display_power 0 # turn off
vcgencml display_power 1 # turn on
This is the only way the touchscreen LCD at my Raspberry Pi 3 turns on and off:
vcgencmd display_power 0 # turn off
vcgencml display_power 1 # turn on