Black screen after removing ATI drivers, how do I reinstall?

Question

Well the updated ATI just came out so I tried to install it. I did the following:

sudo apt-get remove --purge fglrx
sudo apt-get remove --purge xserver-xorg-video-ati xserver-xorg-video-radeon
sudo apt-get install xserver-xorg-video-ati
sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg

Restarted the computer.

I select Ubuntu from GRUB and I get a black screen. I have no idea how to repair this. I previously followed the same instruction for ATI Drivers 11.10 and 11.11 without a problem.

How do I fix this issue so I can boot into Ubuntu and complete the driver installation process?

Answer 1

Reboot into recovery mode, in low graphics mode. Then reinstall your ATI driver:

sudo aticonfig --initial.

If you see nothing again on the reboot, go back into low graphics mode to uninstall the driver.

Answer 2

1. Boot from Ubuntu Live CD and continue trying Ubuntu 11.10

2. Chroot into your installation:

   sudo mount /dev/sdaX /mnt && \
   sudo mount --bind /dev /mnt/dev && \
   sudo mount --bind /proc /mnt/proc && \
   sudo mount --bind /sys /mnt/sys && \
   sudo mount --bind /dev/pts /mnt/dev/pts && \
   sudo cp /etc/resolv.conf /mnt/etc/resolv.conf && \
   sudo chroot /mnt
   

   where /dev/sdaX is the root partition.

3. Install the ati drivers normally

4. Reboot!