On Mon, 13 Feb 2012, Kevin O'Connor wrote:
On Mon, Feb 13, 2012 at 07:42:52AM +0100, Gerhard Wiesinger wrote:
VGA bootsplash isn't displayed because video mode is set
which clears the display. Video mode has already been set
by the VGA BIOS.
The experience from running on real hardware has indicated that a real
off-the-shelf BIOS will init the display and clear the screen at
startup. We've seen real off-the-shelf vgabios do weird things if the
BIOS doesn't init and clear the screen.
But on real hardware one CAN SEE init string display of e.g. NVIDIA and
AMD cards (some do also a beep after VGA display or on BIOS init). Also
screen is cleared afterwards. Maybe there is a short delay in VGA
BIOS/BIOS.
Another possibility would be to add it as option in the build
process. I've already defined an #ifdef therefore.
Maybe an optional delay (config option) before setting video mode would
also be fine.
Ciao,
Gerhard
--
http://www.wiesinger.com/
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