What's a G640? I know there's a Pentium processor G640, is that what you're referring to? And which Linux distro are you running? Did it come pre-installed or did you or someone else install it? Can you get into the BIOS or is the screen "multi-colored" right from the start?
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.