[Nouveau] [Bug 20144] New: 2D images broken on nv28 (EXA failure?)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20144

           Summary: 2D images broken on nv28 (EXA failure?)
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: pq at iki.fi
         QAContact: xorg-team at lists.x.org


Created an attachment (id=22992)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=22992)
Screencapture of broken 2D

bisected:
d97e993072dc773ecfeb80b5e138b5e4598a1c3d is first bad commit
"exa: preparation for reintroducing driver-controlled pixmaps"

As you see from the screen capture, which oddly enough looks just like what I
saw with my eyes, the 2d rendering is quite broken. More specifcally, pixmap
handling, it seems. I should have a nice background picture, and only one aterm
window drawn. There really is just one aterm, I moved it a few times.

With commit 60c8bb1391a51188a4981b4936c190c149b79b7f "default to autodetecting
whether to enable the driver's kms paths", I tried to disable UTS, DFS and EXA
render, but none of them changed anything.

Currently I'm running happily with commit
1e00c7d1e6edb7f6b4e6d12ef227d27413948f8f "shadowfb: clip copied regions to
frontbuffer size.".


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