Restart USB Mouse Driver after Mouse Freeze

VirtualBox 5.1.18 
Centos 7.3 

Switching to  text mode with              
   Ctrl+Alt+F7 
and immediately returning  to graphical mode with 
   Ctrl+Alt+F1 
may fix the problem   

Reference

• https://unix.stackexchange.com/questions/49272/restart-usb-mouse-driver