I'm marking this bugreport as invalid since it was the NVIDIA's installer to cause the problem.
I don't use Twinview therefore I don't know why it's not working for you. Good night from Italy (it's 00:58 here). ** Changed in: nvidia-graphics-drivers-177 (Ubuntu) Status: New => Invalid -- package nvidia-glx-177 None [modified: /var/lib/dpkg/info/nvidia-glx-177.list] failed to install/upgrade: trying to overwrite `/usr/lib/xorg/modules/extensions/libglx.so', which is also in package xserver-xorg-core https://bugs.launchpad.net/bugs/250486 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs