Sorry I try to write in English! I have tried to write "Knoppix xmodule=fbdev" but Knoppix don't run. I don't well neither with the command "expert" I perhaps must wait a next relase of Knoppix. however I write what has given me the command "lspci":

01:00.0 VGA Compatible controller: ATI Technologies Inc Radeon R350 [Radeon 9800]

01:00.1 Display controller: Ati Technologies Inc Radeon R 350 [Radeon 9800] (Secondary)



01:00.0 Class 0300: 1002: 4e48

01:00.1 Class 0380: 1002: 4e68