Thanks for reply. I typed sudo apt-get install nvidia-331-uvm --reinstall It has just run without errors.
Output: Loading new nvidia-331-uvm-331.89 DKMS files... Building only for 3.13.0-37-generic Building for architecture x86_64 Module build for the currently running kernel was skipped since the kernel source for this kernel does not seem to be installed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1388518 Title: nvidia-331-uvm 331.89-0ubuntu5: nvidia-331-uvm kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1388518/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs