I'm on Ubuntu 12.04.
Everything was fine until I did a fresh install of a proprietary driver for NVIDIA, using the "Additional drivers" utility. After having restarted my computer, I cannot access to my session as usual anymore.
Different things can happen:
- It starts under Ubuntu GNU GRUB with Linux 3.2.0-26-generic-pae, and it looks like a terminal, I can log in and all.
startx
gives me weird colored patterns on the screen and keeps frozen. - It freezes immediately with the weird patterns, or with just a purple screen and my cursor after showing the "Ubuntu" login purple screen.
- Or it shows the usual login screen, but completely deformed, and unusable.
I tried sudo dpkg-reconfigure nvidia-current
to fix my problem, but it didn't work.
Could you help me please ?
Best Answer
Try removing your freshly installed Nvidia driver and go back to the open-source driver, Nouveau. Log in to the command line interface of Ubuntu, launch
sudo apt-get install nouveau-firmware
(just in case) then follow the instructions at https://askubuntu.com/a/12941/5592:After that, if this solved your problem, you will probably have a very low resolution. So launch the "Displays" utility from the Dash home and adjust your resolution accordingly to fit your screen the best.