After a power outage, I reboot the computer.
However when I login and press enter, the screen turns black for a moment and then the login screen comes again.
If I press ctrl alt f1 and type 'startx' the screen turns completely black for a moment and then I see the console again, with no apparent error but "server terminated successfully". This is the xorg log: http://pastebin.com/Q9aLxBZz .
I've already tried to rm the .Xauthority file or sudoing startx but it doesn't work. How could I solve the problem? I urgently need to use the computer :/