I have a LG UC98 huge display connected to MacBook Pro Retina Late 2013 on thunderbolt port. It works fine. But almost like 50 times in a day, the CPU becomes 100% usage and the MacBook pro is dead. I unplug the thunderbolt for 5 minutes and then it becomes normal. Then again, it becomes 100% after sometime and I just do again unplug. Its happening almost 50 times in a day and Im really frustrated. Why would an external display take CPU power from the MacBook ?