Couldn't open /dev/fb0

[Armin Wegner <wegner@ldv35.uni-trier.de>]

Hi,

I have installed 'ggiheretic' and 'vgaheretic'. When I first started one of both
on the console I have been told that /dev/fb0 was missing. I have created it
with 'MAKEDEV framebuffer'. Now I get the message

display-fbdev: Couldn't open framebuffer device /dev/fb0: Operation not
supported by device

What does this mean?

Armin