[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

Jan Ziak <0xe2.0x9a.0x9b at gmail.com> changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|NEW |RESOLVED

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #10 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
(In reply to Marek Olšák from comment #9)
> I can't reproduce this on Tonga and Polaris11. It seems to be fixed. Can you
> please confirm?

I can't reproduce the issue as well. It was still there just a few weeks ago.

I will do a more thorough check later today and close this issue if the problem
is no longer there.

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #9 from Marek Olšák  ---
I can't reproduce this on Tonga and Polaris11. It seems to be fixed. Can you
please confirm?

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

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https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #8 from Nicolai Hähnle  ---
Thanks, I can reproduce this on Polaris. No idea what's causing yet, though it
seems there are actually some piglit tests affected by tesselation bugs as well
(notably, arb_shader_image_load_store-coherency).

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #7 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
(In reply to Nicolai Hähnle from comment #5)
> Can you produce an apitrace?

http://atom-symbol.net/f/2016-07-21/ShadowOfMordor.trace.xz

The issue should manifest itself in some frames at the end of the trace.

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

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https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #6 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
(In reply to Nicolai Hähnle from comment #5)
> Can you produce an apitrace?

I will try tomorrow.

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

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https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #5 from Nicolai Hähnle  ---
Can you produce an apitrace?

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #4 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
Steps to reproduce:

1. Select low graphics quality
2. Restart game
3. Enable tessellation in game settings
4. Restart game
5. Start the benchmark from game menu
6. The benchmark title screen is showing white flickering pixels on Talion's
leather baldric

Mesa 12.1.0-devel (git-3c78d89) 2016-07-20

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

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--- Comment #3 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
Created attachment 124354
  --> https://bugs.freedesktop.org/attachment.cgi?id=124354=edit
tessellation on

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

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https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #2 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
Created attachment 124353
  --> https://bugs.freedesktop.org/attachment.cgi?id=124353=edit
tessellation on

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

--- Comment #1 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
Created attachment 124352
  --> https://bugs.freedesktop.org/attachment.cgi?id=124352=edit
tessellation off

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[Bug 96398] [radeonsi tessellation] Single-pixel rasterization issue (Shadow of Mordor)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96398

Bug ID: 96398
   Summary: [radeonsi tessellation] Single-pixel rasterization
issue (Shadow of Mordor)
   Product: Mesa
   Version: git
  Hardware: Other
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: Drivers/Gallium/radeonsi
  Assignee: dri-devel at lists.freedesktop.org
  Reporter: 0xe2.0x9a.0x9b at gmail.com
QA Contact: dri-devel at lists.freedesktop.org

GPU: R9 390
Mesa 12.1.0-devel (git-be365f3)

Please see the screenshots attached to this issue.

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