[Bug 261887] graphics/drm-fbsd13-kmod black screen on i386

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 14 Feb 2022 15:50:21 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261887

--- Comment #14 from Stefan B. <sblachmann@gmail.com> ---
Wow, this surprises me!

Because, my testing showed that vt newcons breaks suspend/resume with _all_
graphics cards I have that are not supported by the Intel/AMD drm-kmod drivers,
eg. Nvidia, Matrox, ATI, S3, SiS.
So I supposed that resuming with vt as console _only_ works if KMS drivers are
installed/loaded.

So I felt surprised reading that resuming with vt newcons worked for the
'Mobile 915GM/GMS/910GML Express Graphics Controller', even when drm-kmod had
not been loaded.

If you have the time, I would be very happy if you could check whether
suspend/resume works on your computer with the SC console, too.
You can enable the SC console by adding this line in /boot/loader.conf and
rebooting:

kern.vty="sc"

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