[coreboot] [SeaBIOS] VideoBios question

Kevin O'Connor kevin at koconnor.net
Thu Oct 4 14:42:16 CEST 2012

On Wed, Oct 03, 2012 at 04:16:59PM +0200, Christian Gmeiner wrote:
> Hi all.
> As you may noticed I am working on the SeaVideoBios (Geode part). And
> I am running into
> a simple question:
> What is the default state/video mode the VideoBios should enter
> during/after init?
> In general I need to set the wanted mode via int10 AH=00h
> Would it be okay to have no mode set during init and trust that the
> mode is set before
> using it?

SeaBIOS will always set the mode (to AH=03h) immiediately after
initializing the vgabios.  I've observed this behaviour in other off
the shelf BIOS implementation as well.


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