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When I try to boot Ubuntu 12.04 it will crash and I have to restart my PC. I'm dual booting Windows 7, right now when I try to boot it gets to the purple screen but nothing shows up. It will stay on that for a minute then the screen flashes white then goes black and the screen shuts off(not literally just says no display device active) I've used Ubuntu before and never had these problems.

This all occured after I installed ATI video card drivers for linux. I'm also on 64 bit version.

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Welcome to Ask Ubuntu! This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. – Jorge Castro Jul 31 '12 at 3:24

closed as off topic by Jorge Castro, Eliah Kagan, Mitch, jokerdino♦, RolandiXor♦ Aug 8 '12 at 4:08

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined in the FAQ. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about closed questions here.

1 Answer

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Boot from a LiveCD, then mount your hard drive. Find where your Ubuntu partition is mounted - mouse over it in Nautilus and note down the /media/whatever that pops up. Then, open a terminal, and run 'sudo chroot /media/whatever', replacing whatever with what you noted down. You now have a terminal logged in as root to your Ubuntu installation. So go ahead and uninstall the ATI video drivers (I am unsure how to do that).

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