[ubuntu] x goes blank and tty1,2,3,4,5,6 give login

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http://ubuntuforums.org – Greetings, Problems with 12.04.2 LTS. I've reinstalled 3 time on different dell hardware (laptops). When system screen locks I can't get back to x, ssh sessions won't work either. I can get to tty and have a login screen, but each time I try to put a user in I don't get an opportunity to put a... (Hardware)