In real macbook its not occurred but for those who are using mac with dual boot windows 7 having this kind of problem.
Vlc player Black Screen Video Playing Problem in Mac Hackintosh Solved
well so far what I ve found that there is a graphics card which is not match with the Mac os and some more vlc player never set up properly with the preference settings. So if you have same problem with vlc. still you have to wait until the right solution have found but you can temporary use movist player which can run same kind of video and audio file that is played by vlc player. At the conclusion i like to say try to use original mac osx with relevant graphics card. or check with vlc player preference settings anything goes wrong or not. After applying all if the problem still exist then use winebottler in your mac and then install vlc. I hope you can recover from vlc black screen problem. Even though trying all still you get black screen then stopped using it try movist and you will be able to watch video properly. movist is the best alternative of vlc I guess. This is a free version and you don’t have to worry about buying of it after using few days at all. So guys enjoy macbook in your windows pc. ….