HOWTO: change the resolution of your framebuffer
From Sabayon Wiki
First type the following commands to get your supported framebuffer resolutions
sudo hwinfo --framebuffer | grep 'Mode '
Find the resolution you want and write down the hex code for it.
Ex:
Mode 0x031b: 1280x1024 (+5120), 24 bits
The hex code is 0x031b
next edit your grub.conf
where it says vga=764 or vga=whatever_number change it to vga=0x031b
save the file and reboot! your done! You should now have an easier to read tty.