FreeBSD VESA console not working with SeaBIOS

[Jon Doe]

Hi List,

I'm trying to get a VESA console going on FreeBSD 8.2. There seems to
be some mixup detecting available video modes (using SeaBIOS 1.7.5).

FreeBSD's vesa.ko module refuses to load, bailing out from
vesa_bios_init() (see
http://fxr.watson.org/fxr/source/dev/fb/vesa.c?v=FREEBSD82#L816). The
whole VESA block seems to be garbage, or it is parsed incorrectly.

Any ideas on what might be wrong?