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

[bugzilla-daemon at freedesktop.org]

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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