On 10/02/2025 23:33, Bjoern A. Zeeb wrote:
Problem now is that I can panic it quite badly but I am stuck on the X
screen. Was there a way to make it switch to v0 on panic so one can
use the kernel debugger?
Hi!
Also it didn’t always worked before, when I changed drm-kmod to
integrate with vt(4) using a Linux-compatible fbcon API for the update
to DRM 5.17, I think that part regressed even more. I couldn’t figure
out what call(s) should be made to ask the driver to switch mode. Even
in Linux, there are multiple code path that are unclear to me. None of
the things I tried worked.
I had to do this change because the amdgpu driver dropped the old way of
integrating with the console (old way = driver-specific console setup)
to use the generic code. The i915 and radeon drivers are still using the
old approach but it is bound to the new integration and the switch
during panic is broken for them too.
--
Jean-Sébastien Pédron
The FreeBSD Project
