Please attach your /var/log/Xorg.0.log and /etc/X11/xorg.conf files. It sounds like you may not have glx enabled, but there's insufficient info from the backtrace to tell.
Please attach your /var/log/Xorg.0.log and /etc/X11/xorg.conf files. It sounds like you may not have glx enabled, but there's insufficient info from the backtrace to tell.