6.0 and console on ThinkPad x220

karu.pruun karu.pruun at gmail.com
Mon May 31 00:26:55 PDT 2021

I could not replicate the problem on my old i915 laptop.

Can you open a bug on the bugs.dragonflybsd.org (if you don't have an
account ask on irc) and attach the drm.debug=0x777 outputs of both 5.8
and 6.0 there? Comparing them might help find the problem.



On Sat, May 29, 2021 at 1:02 AM Chuck Musser <cmusser at sonic.net> wrote:
> >
> > fb_info = { width = 1366, height = 768, stride = 5504, depth = 32 }
> >
> > So at least the dimensions are the same.
> Now that I know to use buildkernel, not quickkernel, I'll try  putting
> in some traces. One thing I noticed is that there are a number of calls
> to set the framebuffer for a plane, most of which end up up settting no
> framebuffer (it shows as [NOFB] in the logs). On 5.8, one plane
> eventually gets a framebuffer assigned to it and there are no errors. On
> 6.0, all the log messages for the planes show [NOFB] and eventually
> there are a couple error messages. One's a warning inside
> __drm_atomic_helper_set_config about the framebuffer pointer being NULL.
> So in some cases, having a NULL framebuffer is worth a warning and other
> it doesn't seem to be.
> Chuck

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