Bug 110658

Summary:	MXGP3 (Steam, native Linux port, UE4): graphical glitches
Product:	Mesa	Reporter:	Alexander Mezin <mezin.alexander>
Component:	Drivers/Gallium/radeonsi	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium	CC:	t_arceri
Version:	19.0
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Alexander Mezin 2019-05-10 05:13:03 UTC

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

Comment 1 Timothy Arceri 2019-05-27 03:28:17 UTC

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.

Comment 2 Alexander Mezin 2019-05-27 04:04:12 UTC

llvm 8.0.0

Comment 3 Timothy Arceri 2019-05-27 04:58:49 UTC

Are you able to test with llvm 9?

Comment 4 Timothy Arceri 2019-05-29 05:33:02 UTC

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.

Comment 5 Alexander Mezin 2019-05-29 15:12:22 UTC

(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).

Comment 6 Alexander Mezin 2019-05-31 23:19:10 UTC

(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

Comment 7 GitLab Migration User 2019-09-25 18:49:56 UTC

-- GitLab Migration Automatic Message --

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

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