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Possible Duplicate:
How do I install latest NVIDIA drivers by hand?

nvidia-installer log file '/var/log/nvidia-installer.log' creation time: Thu Dec 13 21:28:38 2012 installer version: 304.64

PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

nvidia-installer command line: ./nvidia-installer

Using: nvidia-installer ncurses user interface -> The file '/tmp/.X0-lock' exists and appears to contain the process ID '1200' of a runnning X server. ERROR: You appear to be running an X server; please exit X before installing. For further details, please see the section INSTALLING THE NVIDIA DRIVER in the README available on the Linux driver download page at

please help me fix this.

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marked as duplicate by Web-E, Mik, Ringtail, fossfreedom Dec 13 '12 at 15:12

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Please refer… for a solution – Hashken Dec 13 '12 at 13:35

To install the nvidia drivers manually you need to run the nvidia installer with the X server closed. So first drop to console

sudo stop lightdm

And then go to the directory where you have the installer and run it. When you are done try

sudo start lightdm

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