[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

            Bug ID: 110658
           Summary: MXGP3 (Steam, native Linux port, UE4): graphical
                    glitches
           Product: Mesa
           Version: 19.0
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mezin.alexander@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

In game the screen is sometimes too dark, when it shouldn't, sparks everywhere.
In menus everything is OK.

Screen capture: https://youtu.be/rr9DdFfII5E (glitches begin at 0:16)

Also reported the issue to game developers, got no response so far.

gpu: RX Vega 64
mesa: 19.0.3, also tested with 19.1 rc1, no changes
linux 5.0

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

Timothy Arceri <t_arceri@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Timothy Arceri <t_arceri@yahoo.com.au> ---
What version of LLVM are you using?

I could not reproduce the issue on my Vega 64 with the development version of
LLVM 9.0.0.

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

--- Comment #2 from Alexander Mezin <mezin.alexander@gmail.com> ---
llvm 8.0.0

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

--- Comment #3 from Timothy Arceri <t_arceri@yahoo.com.au> ---
Are you able to test with llvm 9?

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

--- Comment #4 from Timothy Arceri <t_arceri@yahoo.com.au> ---
I've run it on llvm 8 and mesa 19.0.5 and was unable to reproduce the issues
seen in the screen capture on my Vega 64.

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

--- Comment #5 from Alexander Mezin <mezin.alexander@gmail.com> ---

(In reply to Timothy Arceri from comment #3)
> Are you able to test with llvm 9?

I won't have time for that until weekend

(In reply to Timothy Arceri from comment #4)
> I've run it on llvm 8 and mesa 19.0.5 and was unable to reproduce the issues
> seen in the screen capture on my Vega 64.

Just re-tested with mesa 19.0.5+llvm 8, the issue is still there.

It seems to be track-specific. At least it doesn't happen on "Compound", for
example.

Also the game runs fine under Proton/SteamPlay (no glitches/artifacts).

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

--- Comment #6 from Alexander Mezin <mezin.alexander@gmail.com> ---
(In reply to Timothy Arceri from comment #4)
> I've run it on llvm 8 and mesa 19.0.5 and was unable to reproduce the issues
> seen in the screen capture on my Vega 64.

What kernel version and distro are you running?
Mine are kernel 5.1.5, distro Arch linux

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[Bug 110658] MXGP3 (Steam, native Linux port, UE4): graphical glitches

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https://bugs.freedesktop.org/show_bug.cgi?id=110658

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

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

--- Comment #7 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1405.

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