If you are having problems with a laptop loading linux, you might be able to troubleshoot with Knoppix LIVE CD. Yeah, its not Ubuntu/Kubuntu, but you can see if some of the hardware you have is even picked up by the kernel which Knoppix is pretty good at detecting.
Ensure that you use the right cheat codes with Knoppix. A lot of times with an LCD screen (for a desktop or the standard laptop) you will have to enter the right cheat code to get it to work. This happend with Knoppix on my computer; I just got a blank screen when it loaded up X11.
The remedy was upon getting the prompt, I typed
which uses a 1024x768 resolution screen on an LCD monitor. This should be a good starting point for your laptop. Mess with the frame buffer cheat codes. You can find a whole list of cheat codes at
If you can get Knoppix to load and detect everything, then maybe you need to run Ubuntu/Kubuntu in a non-graphical interface to further the troubleshooting.
Hope this helps.