Re: [SeaBIOS] eDP Init Failure on Broadwell

[Kevin O'Connor]

On Sun, Jan 03, 2016 at 05:30:44PM +0000, CoolStar Organization wrote:
> On a Broadwell based chromebook with upstream coreboot & SeaBIOS, SeaBIOS
> fails to initialize the built-in display.
>
> If coreboot is configured to run the optionrom, keep the VESA framebuffer
> and use VESA mode 4117 (1024x768@16), coreboot initializes the eDP properly.
>
> However, if coreboot is configured not to run the VGA optionrom and SeaBIOS
> is configured to run it, the eDP doesn't initialize properly. HDMI out
> works fine, but eDP doesn't from SeaBIOS.

Can you provide the full debug log from a successful boot (with
coreboot running the option rom) and from a failure boot (with seabios
running the option rom).

-Kevin