Something fishy is going on with bluetooth and game controllers. Should one run out of power/disconnect controller midgame, system will not reconnect the controller back up until doing a restart (quitting the game to menu and trying there is not working either) - Is my guess right, as it ready in package descriptions that kernel is just too old to handle low power devices or bluetooth LE profile in the first place? (BLE needs min of Kernel 3.5 as stated in bluez5-tools package)