Re: kernel goes dark on boot

To: Taylor R Campbell <campbell+netbsd-tech-kern%mumble.net@localhost>
Subject: Re: kernel goes dark on boot
From: Emmanuel Dreyfus <manu%netbsd.org@localhost>
Date: Thu, 12 Jan 2023 14:02:30 +0000

On Wed, Jan 11, 2023 at 12:17:37PM +0000, Taylor R Campbell wrote:
> Do you have serial console, or can you ssh in, or can you type
> blindly?  Can you get dmesg out that way?

No way. 

> If not, can you reboot (without full poweroff), enter userconf,
> disable i915drmkms, disable radeon, disable nouveau, and get dmesg
> from the previous boot?

It goes dark when kernel starts displaying, before DRM takes over, 
hence userconf is not usable.

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost

Follow-Ups:
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  - From: Martin Husemann

References:
- kernel goes dark on boot
  - From: Emmanuel Dreyfus
- Re: kernel goes dark on boot
  - From: Taylor R Campbell

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