after installing 3 days ago Ubuntu 12.04, today I was asked to upgrade to 12.10. I did it and after rebooting, I have the purple screen of ubuntu for a second, and then I got a black one permanently.
I have tried to do as it is said here My computer boots to a black screen, what options do I have to fix it? and to reinstall the nvida driver (apt-get install nvida-current) but it is still the same.
Any suggestion?
