According to this thread
one can solve the conflict between vesafb and the nvidia kernel module of the xserver with the line
Option "ConnectedMonitor" "CRT"
(15jack VGA) or Option "ConnectedMonitor" "DFP"
Is there also a way to "unlock"
the nvidiafb that way, that one is able to use it beside the xserver?
In which format do I have to use the mode_option= and the video= in grub/menu.lst anyway? I ask that also for vesafb, if it is impossible to use nvidiafb and xorg/nvidia.ko side by side. How to make the menu.lst entries?
I updated the initrd with nvidiafb and vesafb in /etc/mkinitramfs/modules , and the depending modules.