[Nouveau] [Bug 91890] New: [nve7] witcher2: blurry image & DATA_ERRORs (class 0xa097 mthd 0x2380/0x238c)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91890

            Bug ID: 91890
           Summary: [nve7] witcher2: blurry image & DATA_ERRORs (class
                    0xa097 mthd 0x2380/0x238c)
           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: marcin.slusarz at gmail.com
        QA Contact: nouveau at lists.freedesktop.org

Created attachment 118091
  --> https://bugs.freedesktop.org/attachment.cgi?id=118091&action=edit
Witcher2 on Nouveau

Witcher 2 looks blurry on nouveau and spams dmesg with a lot of:

[  390.489069] nouveau E[  PGRAPH][0000:01:00.0] DATA_ERROR [INVALID_BITFIELD]
ch 5 [0x007f853000 witcher2[5663]] subc 0 class 0xa097 mthd 0x2380 data
0x00024000
[  390.489156] nouveau E[  PGRAPH][0000:01:00.0] DATA_ERROR [INVALID_BITFIELD]
ch 5 [0x007f853000 witcher2[5663]] subc 0 class 0xa097 mthd 0x238c data
0x00010500

Screenshots comparing intel and nouveau attached.
Apitrace: http://people.freedesktop.org/~mslusarz/witcher2.trace.xz (130MB)

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