Flash Raspbian on 32GB SD card.
Everything works fine when first start.
After I shutdown it using
sudo shutdown -h now and take off usb power..
Suddenly, HDMI output broken down, no output on LCD at all.
when the power is disconnected from the raspberry pi or is shut down, all peripherals such as HDMI are no longer usable because the source, being the raspberry pi and it's data is no longer on and transmitting data to the HDMI output.