Basically you need to enable frame buffer support at boot time in the kernel. If you edit your grub.conf (in the /boot directory), you need to find the 'kernel' line that you are currently booting as there maybe more than 1. Then add 'vga=XXX' at the end of the line. The XXX you must determine what font size you can use and support.
http://www.tldp.org/HOWTO/Framebuffe...O-5.html#ss5.3
From experience, usually 788 works for my 17" mon which can support 1024x768.
Note I put 788 in decimal, I think the parameter also supports hex.