How to charge the HTC One X with power-off / display-off

I used to power off my phone at night while charging when I was using Desire S. Recently I bought HTC One X and can't charge with power off anymore. It keep turning on with the battery and bolt logo and display don't turn off. If I press the power button, the phone is boot again into Android. Now I have to turn on Airplain mode at night when charging. Am I the only one who encounter that problem because I doubt that is happening as I unlocked bootloader. I ain't sure as I unlocked the bootloader since the day I bought it. How can I charge with power off?