[HoTuanPhong]

First I use command raspistill or raspivid -o and camera running ok. Then five days, i set up opencv, g++, i use command raspistill or raspivid -o, its take one photo or a video have some frames (don't have time video like set up time)...and after the screen LCD so dark and not display. I fix it use "sudo nano /boot/config.txt but its continue problems. Help me, please help me. Thank you

[popcornmix]

Doesn't sound like an xbmc issue. Perhaps ask here:
http://www.raspberrypi.org/forums/index.php

[HoTuanPhong]

Thank you, i post in many forum to have answer exactly