As Daniel mentioned, the problem is in OpenGL. If you are willing to run without it, you can work around the problem for now by disabling the "glx" module in /etc/X11/xorg.conf by adding the following lines:
Section "Module" Disable "glx" EndSection This issue was caused because the video driver ABI version was changed correctly, but nobody noticed that the extension module ABI needed to be bumped as well. That's why the problem only affects libglx and not the nvidia X driver. Please note that we do not officially support pre-release or release candidate X servers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1037896 Title: Starting Firefox kills xserver immediately when using 2D desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1037896/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs