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  • Acer Aspire 722 - Dual boot with Ubuntu 12.04 inside windows 7.

As I have updated my Ubuntu 12.04 and installed the restricted hardware (graphics) drivers, the system boots and freezes to a blank screen.

A hard reset is the only option to reboot.

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marked as duplicate by Braiam, guntbert, Eric Carvalho, Seth Feb 28 '14 at 4:32

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Do you still experience this problem? – Braiam Feb 27 '14 at 2:24
OP last seen half an hour later, voting to close OT/not reproducible. – guntbert Feb 27 '14 at 20:21

Can you get to the console by pressing Ctrl+Alt+F1? If so login to the console and uninstall the drivers by typing:

sudo apt-get remove fglrx fglrx-amdccclete

This will remove the AMD/ATI graphics driver and revert back to the open source one. The reboot the computer by typing

sudo reboot

If you cannot get to the console, choose recovery mode at the boot loader (GRUB) menu. using this guide. Then choose "Drop to root shell prompt." There you can use the above commands without sudo in the beginning.

Hope this helps

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