[SeaBIOS] cbvga

Marc Jones marcj303 at gmail.com
Tue Sep 30 07:27:33 CEST 2014

I'm trying to use the cbvga after a coreboot has initialized graphics.
It looks like everything is fine, but I don't get any seabios text on
the screen. It seems that int10 isn't working. Grub is able to display
fine. Does anyone know if Grub uses int10 or direct b8000 accress?

Scan for VGA option rom
Running option rom at c000:0003
Start SeaVGABIOS (version ?-20140929_231635-megaman)
enter vga_post:
   a=00000000  b=0000ffff  c=00000000  d=0000ffff ds=0000 es=f000 ss=0000
  si=00000000 di=000087b0 bp=00000000 sp=00006e62 cs=f000 ip=d413  f=0000
coreboot vga init
Found FB @ c0000000 1024x768 with 16 bpp (2048 stride)
set VGA mode 140
Attempting to allocate VGA stack via pmm call to f000:d46a
pmm call arg1=0
VGA stack allocated at ef590
Turning on vga text mode console
set VGA mode 3
SeaBIOS (version ?-20140929_231635-megaman)



More information about the SeaBIOS mailing list