Problem:
Solution :
THE SYSTEM RUNNING IN LOW GRAPHICS MODE – SOLUTION
Then run this on your terminal when that is done:
Follow that with the following line on your terminal:
Before you restart the machine, run this next line:
When prompted here, select sddm (This by the way is a Graphics Manager)
Finally, reboot this bad boy and you will be on your way to happy dancing;
You can find more information by visiting the Ubuntu forums.