Nouveau - Jul 2015 - [Bug 91310] New: witcher 2 glitches a lot

https://bugs.freedesktop.org/show_bug.cgi?id=91310

            Bug ID: 91310
           Summary: witcher 2 glitches a lot
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: freedesktop at karolherbst.de
        QA Contact: nouveau at lists.freedesktop.org

Created attachment 117061
  --> https://bugs.freedesktop.org/attachment.cgi?id=117061&action=edit
screenshot showing the glitches

In the Load game menu and inside the game witcher 2 glitchers a lot.

sadly I can't create an apitrace, because the game crashes with
MESA_EXTENSION_OVERRIDE=-GL_ARB_buffer_storage and setting vb_dirty = 1 and
cb_dirty = 1 doesn't help (in nvc0_vbo.c:nvc0_draw_vbo)

It works with intel.

All settings set to minimum.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
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 Attachment #117061|text/plain                  |image/png
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https://bugs.freedesktop.org/show_bug.cgi?id=91310

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Is this still a thing? There was an issue that was causing blurriness in
Witcher2 for joi that went away with
http://cgit.freedesktop.org/mesa/mesa/commit/?id=e50c01d5af305e07110cb4a38d5a655437058f04
. I somewhat assume he would have noticed such massive glitching...

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--- Comment #2 from Karol Herbst <freedesktop at karolherbst.de> ---
the issue is still there, but I got a working workaround: go into arena, then
load the game. It's fine this way.

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--- Comment #3 from Karol Herbst <freedesktop at karolherbst.de> ---
seems like the issue gets worse the lower the core clock is, for reasons I
don't understand

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--- Comment #4 from Karol Herbst <freedesktop at karolherbst.de> ---
Created attachment 119105
  --> https://bugs.freedesktop.org/attachment.cgi?id=119105&action=edit
issue somewhere else

still happens with:
Mesa 11.1.0-devel (git-3c6c4d4)

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

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

--- Comment #5 from GitLab Migration User <gitlab-migration at
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/1079.

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