Re: UEFI GOP: screen goes blank during boot after loader is finished

From: Kyle Evans <kevans_at_freebsd.org>
Date: Wed, 14 Nov 2018 06:49:03 -0600
On Tue, Nov 13, 2018 at 9:53 PM Rebecca Cran <rebecca_at_bluestop.org> wrote:
>
> On Tuesday, 13 November 2018 18:57:25 MST Kyle Evans wrote:
>
> > However, because loader-land is funny in a not-ha-ha kind of way, can
> > you try replacing loader.efi on your guest VM with the Forth-flavored
> > version to rule that out or narrow it down, please?
>
> That didn't help.
> As probably expected, the last output before the screen goes blank is
> framebuffer information:
>
> /boot/kernel/kernel text=0x16776f0 data=0x1cd288+0x768b40
> syms=[0x8+0x174ca8+0x8+0x192218]
> Booting...
> Start _at_ 0xffffffff80341000 ...
> EFI framebuffer information:
> addr, size       0xc1000000, 0x1000000
> dimensions   800 x 600
> stride             800
> masks          0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000
>

Good, good, so the loader <-> kernel transition would appear to be
intact and information appears good at first blush. If you don't have
time to dig into this, I'll try poking at it this weekend, but it
looks to be either kernel problem or VNC server.

Thanks,

Kyle Evans
Received on Wed Nov 14 2018 - 11:49:17 UTC

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