Bug 100695 - Texture artifacts in Deus Ex: Mankind Divided
Summary: Texture artifacts in Deus Ex: Mankind Divided
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/radeonsi (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact: Default DRI bug account
Depends on:
Reported: 2017-04-16 17:37 UTC by Hadrien Nilsson
Modified: 2017-04-25 20:33 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Main menu screen with an unreadable title (326.35 KB, image/jpeg)
2017-04-16 17:37 UTC, Hadrien Nilsson
Loading screen glitches (1.23 MB, image/png)
2017-04-22 21:44 UTC, Hadrien Nilsson

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Description Hadrien Nilsson 2017-04-16 17:37:14 UTC
Created attachment 130861 [details]
Main menu screen with an unreadable title


I've got glitches in Deus Ex: Mankind Divided that appeared some days ago. See the screenshot were the title is unreadable.

OS: Ubuntu 17.04
Linux kernel version: 4.10.0-19-generic
cpu: Intel i7-6700K
gpu: Amd RX 480
Mesa version: 1:17.1~git170417001000.9f0dd85~z~padoka0
Comment 1 Michel Dänzer 2017-04-17 07:39:51 UTC
Could be a duplicate of bug 100681.
Comment 2 Hadrien Nilsson 2017-04-18 19:48:50 UTC
(In reply to Michel Dänzer from comment #1)
> Could be a duplicate of bug 100681.

Probably, radv also gives me glitches in The Talos Principle.

Today I updated Mesa to version 1:17.2~git170417160400.ba6c451~z~padoka0 and the glitches are still there. The llvm SVN revision stays at r300374.

I built the llvm trunk but I have no idea how to ask Mesa to use the build result (are .so or lib.a used?). If you have any tutorial to run a specific llvm version with Mesa I would be interested.
Comment 3 Michel Dänzer 2017-04-19 03:52:41 UTC
Until bug 100681 is fixed, updating to newer snapshots won't help if it's caused by the same problem. The most likely culprit so far is LLVM r300023.
Comment 4 Michel Dänzer 2017-04-21 00:45:44 UTC
Bug 100681 was fixed by LLVM SVN r300791, how about this?
Comment 5 Hadrien Nilsson 2017-04-22 13:41:13 UTC
(In reply to Michel Dänzer from comment #4)
> Bug 100681 was fixed by LLVM SVN r300791, how about this?

I got an update of the padoka package today. It ships with llvm-5.0 r301038 but unfortunately the problem is still there :(
Comment 6 network723 2017-04-22 19:53:21 UTC
I can't reproduce this with opensuse + RX480 + Mesa-git 17.2 (d1608d6982) + llvm 5.0 revision 300864 + linux 4.10.11
Comment 7 Hadrien Nilsson 2017-04-22 21:44:53 UTC
Created attachment 130984 [details]
Loading screen glitches

Other screenshot showing glitches
Comment 8 Hadrien Nilsson 2017-04-22 21:53:53 UTC
Some in-game bad textures disappeared. The Talos Principle is fixed too. I think those glitches were actually related to bug 100681. The textures looked dirty, but they were not complete garbage as seen in the screenshots attached to this bug. So now I think it is a different problem.

So far I have only seen the glitch on user interface textures.

I am still learning to build my own version of Mesa with a specific version of LLVM in order to find the bad revision.
Comment 9 Hadrien Nilsson 2017-04-25 20:33:56 UTC
I uninstalled padoka packages and reinstalled plain mesa 17.0.3 from Ubuntu 17.04.

I then reinstalled padoka and the problem is gone.

I will probably never know what happened. Anyway, I'm closing the bug.

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