Q: How to install Graphics Driver (NVIDIA)?

1. Read General Notes
2. Read How to add extra repositories?

3. sudo apt-get install nvidia-glx
   sudo apt-get install nvidia-settings
   sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf_backup
   sudo nvidia-glx-config enable
   sudo gedit /usr/share/applications/NVIDIA-Settings.desktop

4. Insert the following lines into the new file

   [Desktop Entry]
   Name=NVIDIA Settings
   Comment=NVIDIA Settings
   Exec=nvidia-settings
   Icon=
   Terminal=false
   Type=Application
   Categories=Application;System;

5. Save the edited file (sample)
6. Read How to restart GNOME without rebooting computer?
7. Applications -> System Tools -> NVIDIA Settings