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I just switched my graphics to use the propriety driver instead and after reboot it stop at >starting version 219".

Nothing works. I cannot get terminal by Ctrl+Alt+F1 or anything else.

If I press the power button it shows the Ubuntu logo and powers off.

How can I get back to the generic driver?

1 Answers1

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Follow this post to get into recovery mode:

How do I boot into recovery mode?

In essence:

  • Switch on your computer.
  • Wait until the BIOS has finished loading, or has almost finished. (During this time you will probably see a logo of your computer manufacturer.)
  • Quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you've missed the point where you can enter the GRUB menu.) **
  • Select the line which starts with "Advanced options". *
  • Select the line ending with "(recovery mode)"

And then remove all ATI propietary drivers following this other post:

How do I remove the proprietary ATI drivers?

  • Try to completely remove your ATI drivers from your system:
sudo apt-get purge "fglrx.*"
  • Remove your xorg.conf
sudo rm /etc/X11/xorg.conf
  • Reinstall xorg completely
sudo apt-get install --reinstall xserver-xorg-core
libgl1-mesa-glx:i386 libgl1-mesa-dri:i386 libgl1-mesa-glx:amd64
libgl1-mesa-dri:amd64
  • Re-configure Xorg
sudo dpkg-reconfigure xserver-xorg
  • Reboot
sudo reboot