I have an SiS 6326 AGP 8M video card. It appears to be supported by XF86, but... I get all kinds of garbage on my display whenever I enter text, move windows, click on menus, scrolling, and just about any other action. I am sure this is because XF86's SVGA graphics server is half-incompatible with the SiS 6326 AGP card. If you have found a fix please email me at Kon13
*** This bug has been marked as a duplicate of 2741 ***