Hello there,i-ve installed kali linux 2.0 2 days ago and i-ve noticed that everytime i boot the PC for the first time and i get to the log in screen (where i type username and passwd) my mouse and keyboard freeze and can-t login(also my keyboard turns off like isn-t even connected to the PC).Also this happens even when i reboot the system.The only way to solve this that i-ve found till now is to get to the log in screen,turn the system in standy-by mode and then turn it on again,then all devices start to work.Any suggestions?