[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

--- Comment #7 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
Created attachment 124154
  --> https://bugs.freedesktop.org/attachment.cgi?id=124154&action=edit
Tomb Raider ci-64-tess-blocks screenshot

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[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

--- Comment #6 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
(In reply to Bas Nieuwenhuizen from comment #4)
> Created attachment 124151 [details] [review]
> ci-64-tess-blocks.patch
> 
> Does the attached patch help? If not I would appreciate it if someone could
> find the first commit that fails (using e.g. bisect).
> 
> Also, I noticed all reporters use hawaii/grenada pro chips. If anyone with a
> different chip also has this issue, please let me know.

Unfortunately, ci-64-tess-blocks.patch is making the issue more severe. The
frequency of "black triangles on screen" in Tomb Raider is higher.

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[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

--- Comment #5 from Rafael Castillo  ---
i can confirm this patches generates 0 issues on TAHITI R9-280 and CAPE VERDE
HD7700, so it seems it is specific to hawaii/grenada pro

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[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

--- Comment #4 from Bas Nieuwenhuizen  ---
Created attachment 124151
  --> https://bugs.freedesktop.org/attachment.cgi?id=124151&action=edit
ci-64-tess-blocks.patch

Does the attached patch help? If not I would appreciate it if someone could
find the first commit that fails (using e.g. bisect).

Also, I noticed all reporters use hawaii/grenada pro chips. If anyone with a
different chip also has this issue, please let me know.

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[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

--- Comment #3 from Clésio Luiz  ---
This affect me too, in a R9 290, radeonsi driver, using padoka PPA with Kubuntu
16.04.

When you disable tesselation in those games the problem goes away.

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[Bug 96239] [radeonsi tessellation] Random "texture flickering" (Shadow of Mordor, Tomb Raider, Unigine Heaven 4.0)

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

https://bugs.freedesktop.org/show_bug.cgi?id=96239

prazola  changed:

   What|Removed |Added

Summary|[radeonsi tessellation] |[radeonsi tessellation]
   |Random "texture flickering" |Random "texture flickering"
   |(Shadow of Mordor, Tomb |(Shadow of Mordor, Tomb
   |Raider) |Raider, Unigine Heaven 4.0)

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