I have a Dell Precision 5560 with Ubuntu installed from the factory. While the article says that they find power management is where the laptop shines, I have had the opposite experience. I've found that often my 5560 is dead because the battery quickly drains when its off. Does anyone have a fix for this? It seems this thread has attracted some fellow users. Do you have this problem as well? It's really surprising to me that this was an issue out of the box from a vendor who has been selling Linux systems for a while now.