Using the cheat codes gives you a chance to use many types of video.
Check them out if knoppix interests you.

At boot try "knoppix xserver=XFree86|XF86_SVGA"
There are many more codes you could try.

quote (It doesn't recognize many cards, especially "onboard" cards)

Actually knoppix recognizes an enormous amount of hardware.
Did you know that knoppix gets downloaded over 1,000 times a day?

Hardware makers don't exactly provide linux developers with board specs.
This is the wild and wooly world of freeware.