Originally posted by xtreme
After I logout of a window manager and return to a terminal I get Vertical white lines like my screen is distorted.
This isn't a problem with your X configuration. At this point, X isn't even running.
Did you compile rivafb into your kernel, or is it a module? It should be left out completely. If you want "video mode selection support", "vga text console", and "frame buffer support", then the driver that you should be using for "support for frame buffer devices" is "VESA VGA graphics console" (these are the names of settings in menuconfig, I'm not sure about the other ways of configuring the kernel).
Or, if going back a driver version helps, then go ahead.