Hi,

I have installed Ubuntu 12.04 LTS on my machine.
My system is AMD Athlon X2 processor and M2N68-AM motherboard with 2GB RAM.

While checking the System details, I found that under graphics it is showing Unknown. I searched how can I install the graphics driver and found this command to install Nvidia drivers.

sudo apt-get install nvidia-current-updates

when I used this command it downloaded and installed the drivers for me. But now when I start my system it is not starting. It is showing many things as started and stopping. Among this it is showing
Starting load fallback graphics devices [fail]
and all other [ok]

the final line is
Stopping Userspace bootsplash

but it is not moving ahead. Computer is not responding to anything after here. Keyboard not working... the only option is to switch off and start again...

please help to solve this...

Thanks in advance..

Looks like the system is working but without graphical interface. With ctrl+alt+(F1-F6) will take you to the tty console, login and you can uninstall the packages causing the problem.
Are you sure your video card is Nvidia?
Could you please post the output of the following command:
Regards

Hi,

Thank you for reply.
My system is not accepting keyboard here. Though I press any button or combination nothing happening.

Boot from the installation medium and run the indicated command

I tried this option it is showing this to me

ubuntu@ubuntu:~$ lspci | grep -i vga
00:0d.0 VGA compatible controller: NVIDIA Corporation C61 [GeForce 7025 / nForce 630a] (rev a2)

So what can I do after this..

You could try booting into a standard vesa mode (press the e key to edit the Ubuntu boot stanza, then add nomodeset to the kernel line and press the F10 key to boot). I'm not very familiar with the various Nvidia systems, but it's possible that you need one of the older Nvidia drivers. My Linux Mint Cinnamon install on an HP with onboard Nvidia C78 [GeForce 9100] uses the nvidia-319 package.