Quote Originally Posted by ant
knoppix vga=0 debug -b 3 definitely shows launching X failing after I type startx. vga=0 is like the lowest and should work for all video cards and computers. Wow.
failsafe debug vga=769 worked for 640x480 256 colors.
Actually, you probably want to try different xmodule= cheatcodes rather than vga=. The vga= is only for text-mode, whereas xmodule= is for your X server. But if you do want try try out different vga= cheatcodes have a look at Tip #4.

For trying out various xmodule= cheatcodes you probably would want to just boot with boot: knoppix 3

Regards,
- Robert
http://www.cwelug.org