Could you attach your Xorg.0.log? Also, please try adding:
Section "ServerFlags" Option "AIGLX" "off" EndSection
to your /etc/X11/xorg.conf
Could you attach your Xorg.0.log? Also, please try adding:
Section "ServerFlags"
Option "AIGLX" "off"
EndSection
to your /etc/X11/xorg.conf