The system is running in low-graphics mode is the message I received after my laptop froze when I upgraded to ubuntun 14.04 I need this sorted been on google search all day and im not winning please help need to get my laptom running
Try the following:
When you hit the log on screen type ctrlaltF1 to open a tty1 session.
Log in with your username and password.
See if that solves your problem.