I wanted to install the fglrx driver because the system runs hot and I thought the fglrx driver could help with that.
I've been looking for a very long time around for answers. But no one seems to have the same situation as me.
I simply tried to install a fglrx driver from the "additional drivers" in settings. The installation runs as it should. But then when rebooting it does not automatically login. Trying to log in takes me back to lightdm same with guest.
So from there I did ctrl + alt + f1 and I manually purged the driver sudo apt-get --purge remove fglrx
and updated packages after that. sudo apt-get update
This makes me go back to the open source driver and after rebooting everything is back to normal, I can login. I do have tried to install the fglrx driver again with the Terminal
sudo apt-get fglrx
but that doesn't help.
If I have to do something very advanced I can consider living with the open source driver.
All help appreciated, thanks in advance.