apt-get install xserver-xorg
m-a a-i -i -t -f nvidia-kernel
The rivafb kernel module is known to be incompatible with the nVidia driver; see /usr/share/doc/nvidia-kernel-source/README.Debian. To see if you have this module inserted in your kernel, run 'lsmod | grep rivafb' . If you do, then get rid of it by, in increasing order of forcefulness: 'rmmod rivafb'; 'rm /lib/modules/`uname -r`/kernel/drivers/video/riva/rivafb.ko'; or disabling the module in your kernel config (Device drivers –> Graphics support –> nVidia Riva) and rebuilding your kernel. (If you still want a framebuffer driver, try VESA VGA; it's slow but works well.)
Ova poruka je od: http://www.linux.hr/newbb/viewtopic.php?forum=12&topic_id=501