When booting Knoppix 3.4 normally, X will only run in 640x480 resolution, no matter what is specified at boot time (i.e. screen=1024x768 doesn't do anything). Starting with fb1024x768 causes X to not be able to start at all. However, I have discovered that starting with the fb1024x768 option and (after X fails to start) then changing the driver in XF86Config-4 from "fbdev" back to "i810", X will then start in 1024x768. The only problem now (aside from that being kind of a hassle to do every boot) is that the colors seem a little off. I can't tell what depth it's actually running at now, but it looks like 256 colors.

Anyway, does anyone have any advice on what's going on here?