[Bug 67241] New: [IVB/HSW bisected] 3DMMES v2. 0 render error ”Green Screen” with gnome-session enabling SNA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67241

          Priority: medium
            Bug ID: 67241
          Assignee: chris at chris-wilson.co.uk
           Summary: [IVB/HSW bisected] 3DMMES v2.0 render error ”Green
                    Screen” with gnome-session enabling SNA
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: mengmeng.meng at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

System Environment:       
----------------------------------------------
Platform:  IVB/HSW
Mesa:             (master)5a7bdd4b4173958c53109517b7c95f1039623e7e
Xf86_video_intel:(master)74dd10d252df2d826b6db5da7e53bd7c5d76dec0    
Kernel:    (drm-intel-nightly) 1a7fc2d3e919e151a2e87dd6c98f20eccf95e041

Bug detailed description:
----------------------------------------------
3DMMES v2.0 render error ”Green Screen” with gnome-session enabling SNA on
IVB/HSW. It would be Ok on Raw X(xinit) or disable SNA. 
BTW, the render error make 3DMMES v2.0 performance “improved” such as:
3DMMES v2.0 taiji 147 -> 178 fps.
Please see Xorg.0.log and dmesg.

It’s xf86_video_intel regression, bisecting show the first bad commit is that:
commit e5036fb15983a1d3547eaab381c18b3edf4310b4
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Jul 19 11:51:40 2013 +0100

    sna/dri: Reject invalid DRI2Drawables if STRICT_BLIT is defined


Reproduce steps:
---------------------------------------------
1. enable SNA
2. xinit&
3. gnome-session
4. run 3DMMES v2.0

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