Installing Nvidia Graphics driver under Kubuntu

I’ve had a weird issue. My Kubuntu install would never start Xorg. I could boot to recovery, then make it “resume normal boot”. But it would never boot on its own. I pinned the issue on graphics drivers.

My Graphics Processor is Nvidia GeForce 8400 GS

Driver download page

Latest Ubuntu 32 bit display driver (as of Jan 23, 2012)

This downloads a 32 MB executable file NVIDIA-Linux-x86-290.10.run

Boot to Ubuntu recovery, navigate to the folder containing NVIDIA-Linux-x86-290.10.run

First install binaries required to rebuild kernel:

sudo apt-get install build-essential[/code]

 
 
Then install the driver:
sh NVIDIA-Linux-x86-290.10.run[/code]

 
Now you can start X with:
sudo /etc/init.d/kdm start[/code]

 
Add Nvidia module to start with
kdesudo kate /etc/modules[/code]

Add a line "nvidia" on a new line

Once Nvidia drivers are installed, you can configure them with:
kdesudo nvidia-settings[/code]

For more instructions, refer the following:
https://help.ubuntu.com/community/NvidiaManual