Hi: i got this boot error after installing the 64 bit ubuntu in a HP desktop computer. I'd appreciate any suggestions. Thank you.
I recently had the same problem on an HP as well. I believe it is an issue with the video driver. I corrected the issue by re-installing the correct driver.
From the error message, get to the terminal by crtl+alt+f1(login/password)
Verify your video card type (prob Nvidia or ATI)
After you verify your card, just a simple
*install the needed video driver if diffrent from Nvidia.
after the install
I hope this helps!
If you have more than one external monitor plugged in, see this bug which suggests booting with one of your monitors unplugged. Worked for me.