Can you please try to get the log from when Xorg starts and fails? For example, log in on a console and run:
sudo /etc/init.d/gdm stop
sudo mv /etc/X11/xorg.conf{,.moved}
startx
sudo mv /etc/X11/xorg.conf{.moved,}
cp /var/log/Xorg.0.log ~/Desktop
sudo /etc/init.d/gdm start
Can you please try to get the log from when Xorg starts and fails? For example, log in on a console and run: xorg.conf{ ,.moved} xorg.conf{ .moved, }
sudo /etc/init.d/gdm stop
sudo mv /etc/X11/
startx
sudo mv /etc/X11/
cp /var/log/Xorg.0.log ~/Desktop
sudo /etc/init.d/gdm start