ERROR: An NVIDIA kernel module 'nvidia' appears to already be loaded in your
kernel. This may be because it is in use (for example, by the X
server). Please be sure you have exited X before attempting to
upgrade your driver. If you have exited X but still receive this
message, then an error has occured that has confused the usage count
of the kernel module; the simplest remedy is to reboot your
computer.
OK
按OK以后 出现
ERROR: Installation has failed. Please see the file
'/var/log/nvidia-installer.log' for details. You may find
suggestions on fixing installation problems in the README available
on the Linux driver download page at www.nvidia.com.