Re: CVS commit: src/sys/external/bsd/drm2/nouveau

[maya%netbsd.org@localhost]

On Sat, Jul 06, 2019 at 01:35:20PM +0200, Thomas Klausner wrote:
> On Sat, Jul 06, 2019 at 08:52:43AM +0000, maya%netbsd.org@localhost wrote:
> > Yes, that would be nice. Even if we fail to make your card work, it'll
> > save a few steps for the next person trying to get it functional.
> 
> Ok, what is the procedure for this, and where can I find the licence
> for the blobs, so that I can check if it's fine to add them?
> 
> > However if we fail to make your card work we should add it to the
> > card blacklist in
> > sys/external/bsd/drm2/nouveau/nouveau_pci.c:nouveau_pci_match
> > 
> > (I'm assuming it doesn't know how to recover cleanly)
> 
> I can't start X, but I do get a graphical console (I got that even
> before without the firmware).
> 
> > > I still get the same 4 errors from the driver as before though:
> > > 
> > > [     4.674760] nouveau0: autoconfiguration error: error: DRM: Pointer to flat panel table invalid
> > 
> > This failure can be normal.
> > 
> > > [     4.674760] nouveau0: autoconfiguration error: warn: DRM: unknown connector type 70
> > 
> > This is no longer unrecognised upstream.
> >         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
> > 
> > The git blame points to...
> > 
> > commit df00d5da609f59022ee9aafdb4e2313aefeb6bda
> > Author: Rosen Penev <rosenp%gmail.com@localhost>
> > Date:   Tue Jul 25 17:21:43 2017 -0700
> > 
> >     drm/nouveau/disp: Silence DCB warnings.
> >     
> >     Most of these errors seem to be WFD related. Official documentation
> >     says dcb type 8 is reserved. It's probably used for WFD. Silence
> >     the warning in either case.
> >     
> >     Connector type 70 is stated to be a virtual connector for WiFi
> >     display. Since we know this, don't warn that we don't.
> > 
> > So, another warning to skip.
> 
> Should we disable these in our tree?
> 
> > > [     4.674760] nouveau0: autoconfiguration error: warn: DRM: failed to create encoder 1/8/0: -19
> > 
> > ret here is -19, -ENODEV.
> > 
> > That means switch (dcbe->type) is not DCB_OUTPUT_TMDS, DCB_OUTPUT_LVDS, DCB_OUTPUT_DP, DCB_OUTPUT_ANALOG.
> > 
> > What outputs do you have?
> 
> I see three Displayport, one HDMI and one DVI-I.
> 
> > > [     4.674760] nouveau0: autoconfiguration error: warn: DRM: Unknown-1 has no encoders, removing
> > 
> > It gave up on this output since it doesn't know what to do with it.
> > 
> > 
> > 
> > Full dmesg, with boot -x, might be more insightful. Does it have more
> > connectors that are fine?
> 
> boot -x is too large for the default message buffer (should we perhaps
> increase that, at least on amd64?) but it contains plenty nouveau
> lines, is it sufficient? I'll also attach the output without -x.
>  Thomas


What are we debugging? it looks fine from the dmesg - it found an output
it's happy with.

Is the X failure the problem? what happens? is there /var/log/Xorg.0.log
or dmesg output when it fails?

Thanks.