This question already has an answer here:
To begin with - I've searched other questions with no luck.
So: I've got a 12.10 and trying to set ATI drivers using this tutorial.
After installing and rebooting I've got a blank desktop and used this:
sudo apt-get remove --purge fglrx fglrx*
to get back, but nothing happened! I'm stuck with this empty desktop.
What can I do to get back to open source drivers?
lspci -vvnn | grep VGA tells me that I have
Mobility Radeon HD 4500/5100 series card.