[Nouveau] [Bug 16961] New: 3298249d8267c27235653f17379f8c breaks Xv overlay ( display corruption)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=16961

           Summary: 3298249d8267c27235653f17379f8c breaks Xv overlay
                    (display corruption)
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: mathieu.berard at crans.org
         QAContact: xorg-team at lists.x.org


Hi,
Xv overlay has a pretty major display corruption bug which
was bisected down to commit 3298249d8267c27235653f17379f8c
(xv: reformat source so mere mortals can understand it)

Visually I see flashing bands of alternatively greed/purple colors
that seems mixed with the normal image
The corruption the not seems to affect every frame,
It more looks like something like 1 frame over 2 are corrupted, which
visually create a flashing effect.

A (bad) screenshot on a CRT monitor is attached.

The hardware is a NV20 GeForce 2 Ti 500


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