Nouveau - Aug 2019 - [Bug 111292] New: Advanced Lighting option in Firestorm Viewer makes some objects black on nv92 card

https://bugs.freedesktop.org/show_bug.cgi?id=111292

            Bug ID: 111292
           Summary: Advanced Lighting option in Firestorm Viewer makes
                    some objects black on nv92 card
           Product: Mesa
           Version: git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: randrik at mail.ru
        QA Contact: nouveau at lists.freedesktop.org

Hello!

While not everyone here likes to play Second Life - I was lured into it by
following some interesting posts, and so far it works quite OK with
nouveau/nv92 card. But when i tried to enable _everything_ in viewer's
preferences - scene become broken: / Disabling 'Advanced Lighting' in
preferences moves scene back to normal look.

Viewer: https://www.firestormviewer.org/
Phoenix_FirestormOS-Release_i686_6.0.2.56680 {but be aware viewer for Second
Life only and not OpenSimulator can be blocked when 3 new releases come out ..
see https://wiki.firestormviewer.org/fs_old_version_blocks}

src:
http://www.phoenixviewer.com/phoenix-firestorm-lgpl/file/80296261f0ac/indra/newview/pipeline.cpp
[I think this is correct file in their VCS]


Mesa: OpenGL core profile version string: 3.3 (Core Profile) Mesa 19.2.0-devel
(git-de17922b8a)
kernel: 5.1.12-x64
Xserver: 1.19.7
xf86-video-nouveau - latest git [132955.893] (II) NOUVEAU driver Date:   Mon
Jan 28 23:25:58 2019 -0500

will add two attachements - broken and correct rendering.

You can get Second Life account for free, no need for  credit card info or real
name.

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--- Comment #1 from Andrew Randrianasulu <randrik at mail.ru> ---
Created attachment 144936
  --> https://bugs.freedesktop.org/attachment.cgi?id=144936&action=edit
Scene with broken lighting

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--- Comment #2 from Andrew Randrianasulu <randrik at mail.ru> ---
Created attachment 144937
  --> https://bugs.freedesktop.org/attachment.cgi?id=144937&action=edit
Same scene with correct lights

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--- Comment #3 from Andrew Randrianasulu <randrik at mail.ru> ---
Created attachment 144938
  --> https://bugs.freedesktop.org/attachment.cgi?id=144938&action=edit
X log

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--- Comment #4 from Andrew Randrianasulu <randrik at mail.ru> ---
Created attachment 144939
  --> https://bugs.freedesktop.org/attachment.cgi?id=144939&action=edit
dmesg

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--- Comment #5 from Andrew Randrianasulu <randrik at mail.ru> ---
Created attachment 144940
  --> https://bugs.freedesktop.org/attachment.cgi?id=144940&action=edit
glxinfo

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--- Comment #6 from Ilia Mirkin <imirkin at alum.mit.edu> ---
An apitrace that demonstrates this would be the most expedient way to get this
analyzed and ideally resolved.

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--- Comment #7 from Andrew Randrianasulu <randrik at mail.ru> ---
(In reply to Ilia Mirkin from comment #6)
> An apitrace that demonstrates this would be the most expedient way to get
> this analyzed and ideally resolved.
https://yadi.sk/d/2MMPqKPSiIHxLA - 41791K

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--- Comment #8 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Note to anyone taking a look... due to either a bug in the shader or a bug in
mesa (depending on one's view), you have to run the trace with

MESA_EXTENSION_ENABLE=-GL_ARB_gpu_shader5

on DX11+ GPUs. Clarifying the behavior now as to which is right (pretty sure
mesa behavior is right), but either way it doesn't affect the OP's
problem. The
black floor does not reproduce on a GK208 though.

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--- Comment #9 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Andrew - do you see a bunch of "nv50cal_space: -16" errors in dmesg
when this
happens? I get a lot of submit errors right when the black background appears,
so I think it may be related. But I also have a much lower-end G84 plugged in
right now.

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--- Comment #10 from Andrew Randrianasulu <randrik at mail.ru> ---
(In reply to Ilia Mirkin from comment #9)
> Andrew - do you see a bunch of "nv50cal_space: -16" errors in
dmesg when
> this happens? I get a lot of submit errors right when the black background
> appears, so I think it may be related. But I also have a much lower-end G84
> plugged in right now.
No, or at least they not in dmesg:  dmesg | grep nv50cal_space returns nothing.

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--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Andrew Randrianasulu from comment #10)
> (In reply to Ilia Mirkin from comment #9)
> > Andrew - do you see a bunch of "nv50cal_space: -16" errors
in dmesg when
> > this happens? I get a lot of submit errors right when the black
background
> > appears, so I think it may be related. But I also have a much
lower-end G84
> > plugged in right now.
> 
> No, or at least they not in dmesg:  dmesg | grep nv50cal_space returns
> nothing.
OK, that seems like an artifact of glretrace. Running with MESA_DEBUG=flush and
making _mesa_flush actually call Finish() as well makes the trace run ok. Now I
can get to the actual figuring out of the misrender.

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--- Comment #12 from Ilia Mirkin <imirkin at alum.mit.edu> ---
The issue occurs in draw call 1306672 in the referenced trace. Not yet clear
why... all the inputs are the same, and it's not a complex shader.

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--- Comment #13 from Andrew Randrianasulu <randrik at mail.ru> ---
I also tried NV50_PROG_USE_NIR=1 (with Mesa 19.2.0-devel (git-5254e53deb)) but
it made no difference.

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GitLab Migration User <gitlab-migration at fdo.invalid> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #14 from GitLab Migration User <gitlab-migration at
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-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
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You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1189.

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