How to fix blank screen due to undetected graphics card on ubuntu

I recently encountered an issue while installing Ubuntu 10.04 Lucid Lynx on a HP Proliant Desktop with an Nvidia display card. After the installation finished and i boot up the system, i got a blank screen.

Here is how this issue can be fixed:

- Boot up the system using an Ubuntu Live CD and press any key when you see a human and a little keyboard at the bottom of the screen

- press F6 and then Esc.

- Append "xforcevesa" at the end of the command line.

- Select try out Ubuntu

- Mount the hard drive (in the Places).

- Edit this file "/etc/default/grub" and locate GRUB_CMDLINE_LINUX_DEFAULT

- Change it to be like so if you have an nvidia display card: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"

- Edit this file "/boot/grub/grub.cfg" in the hard drive

- Locate the "linux" tag and add "nomodeset" at the end of the command with "quiet splash"

- Reboot the system without the Live CD.

- Done