see: * http://www.debianplanet.org/node.php?id=256 * ftp://ftp.matrox.com/pub/mga/archive/linux/2001/beta_1_3_0/readme-1_3_0.txt * http://www.matrox.com/mga/support/drivers/latest/home.cfm

make sure that agpgart and mga are loaded.

insmod agpgart
insmod mga
lsmod