At the time of this writing, latest version of Nvidia drivers is
195.35.15 and Ubuntu Karmic (9.10) latest Nvidia driver is
185.
So in order to update to the latest we need to add a PPA repository:
sudo add-apt-repository ppa:nvidia-vdpau/ppa
Update the repository information:
sudo apt-get update
Next, and before installing latest drivers, we will need to deactivate current 185 drivers (if activated) and we will need to uninstall them because of a conflict with newest drivers.
Deactivate current drivers in:
System -> Administration -> Hardware Drivers
After deactivating remove current drivers (185):
sudo apt-get remove nvidia-glx-185 nvidia-185-modaliases nvidia-185-libvdpau
Lastly, install latest 195 drivers:
sudo apt-get install nvidia-glx-195 nvidia-195-modaliases
Don't forget to update your packages and nvidia-settings with it:
sudo apt-get upgrade
Some info from:
Ubuntu Geek.