I spend all day trying to fix the problem but it was impossible. I updated my OS from update manager. I ran a game on steam and the pc has got freeze and then, I rebooted whit button.
When I try to login in login screen, appear one second the desktop, then back to login screen.
I reinstalled the headers, I checked the Xauthority and several other things but anything worked.
I need help!!
EDIT: my OS is Elementary OS Freya. I already tried:
- Check out Xauthority
- Remove Steam and Steam Games
- All this
- sudo apt-get install --install-recommends...
- remove unity-greeter but It is not installed
- sudo apt-get install --reinstall plank
- sudo apt-get install --reinstall elementary-tweaks
- Installed last graphics drivers from here