Comment 85 for bug 661248

Hi, this solution works fine for me (Ubuntu Desktop 11.10 x86):

1 - clean install (from live CD)
* no download updates during setup
* no install 3rd party software during setup

2 - before rebooting PC after setup, run ctrl+alt+T
* sudo mount /dev/sda1 /mnt
* sudo mount --bind /dev /mnt/dev
* sudo mount --bind /dev/pts /mnt/pts
* sudo mount --bind /proc /mnt/proc
* sudo mount --bind /sys /mnt/sys
* sudo mount --bind /etc /mnt/etc
* sudo mount --bind /usr /mnt/usr
* sudo chroot /mnt

3 - che in the chroot terminal that only the nvidia-common are installed:
dpkg -l |grep nvidia

4 - if Yes, reboot PC else remove nvidia package and leave only the nvidia-common

5 - the 1st boot will work fine; at the login screen run ctrl+alt+Fn
6- in the teminal:
* sudo apt-get install -f
* sudo dpkg --configure -a

if it's all ok, do:

* sudo apt-get --purge remove xserver-xorg-video-nouveau
* sudo apt-get --purge remove nvidia*
* sudo apt-get clean && sudo apt-get autoclean && sudo apt-get autoremove

* sudo apt-get update && sudo apt-get install nvidia-common && sudo apt-get install nvidia-current
* sudo rm /etc/X11/xorg.conf*
* sudo nvidia-xconfig

* sudo nano /etc/default/grub

edit this and save:
GRUB_HIDDEN_TIMEOUT=""

7-
* sudo apt-get install --reinstall plymouth
* sudo update-grub2
* sudo update-initramfs -u
* sudo reboot

8 - now, you can try to boot s.o. from the kernel 3.0.0.14-pae

9 - if fail, reboot and select in grub > previous version the kernel 3.0.0.12

when the kernel load stop and seems to fail, press alt-ctrl+Fn and reply from "7"

I hope that this work for everybody ;)