Fixing this problem is rather too easy. Open a terminal (Ctrl+Alt+T) and use the following command:
gsettings set org.gnome.settings-daemon.plugins.cursor active false You’ll have to work a bit to copy this command with an invisible
cursor. I leave that to you 
As
soon as this command is applied, cursor will be visible again like it should
have been. No need for a restart.
I hope this quick tip helps you to fix invisible cursor problem in Ubuntu
13.10. Questions, suggestions are always welcomed. Enjoy
Fix invisible cursor issue in Ubuntu 13.10,布布扣,bubuko.com
Fix invisible cursor issue in Ubuntu 13.10
原文：http://www.cnblogs.com/bittorrent/p/3717852.html