[Bug 63162] New: [sna g33] Whole screen misrenders while maximizing a window

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63162

          Priority: medium
            Bug ID: 63162
          Assignee: chris at chris-wilson.co.uk
           Summary: [sna g33] Whole screen misrenders while maximizing a
                    window
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jirislaby at gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Created attachment 77472
  --> https://bugs.freedesktop.org/attachment.cgi?id=77472&action=edit
xorg.log

I'm using SNA from 2.21.5-32-g4a43aa8. And sometimes when I maximize a window
with gl compositing enabled in KDE4, whole screen blinks, and for a moment I
see kind of b&w lines on the whole screen, i.e. whole screen is corrupted.

Once this also happened while I was moving the horizontal slide bar in FF.

I tried to capture a snapshot of that by this:
while :; do
  import -window root screenshot-`date +%s`-$RANDOM.jpg
  usleep 500000
done

but failed. All images are OK.

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