Commit 65e63420 - Clear the screen after initializing the vga option rom.

[Sebastian Herbszt]

In commit 65e63420 code was added to clear the screen after calling the vga option rom.
The commit message says "Clear the screen after initializing the vga option rom."
Why is this needed?

Sebastian

Commit 65e63420 - Clear the screen after initializing the vga option rom.

[Kevin O'Connor]

On Wed, Nov 24, 2010 at 09:35:04PM +0100, Sebastian Herbszt wrote:
> In commit 65e63420 code was added to clear the screen after calling the vga option rom.
> The commit message says "Clear the screen after initializing the vga option rom."
> Why is this needed?

This was a coreboot thing - it was observed that a real bios will call
int1000 after running the vga bios.  It was also observed that real
vga bios do odd things if one tries to write to the screen without
initializing it first.

-Kevin