[Bug 68777] New: [SNA TearFree] SDL fullscreen switch causes persistent display corruption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68777

          Priority: medium
            Bug ID: 68777
          Assignee: chris at chris-wilson.co.uk
           Summary: [SNA TearFree] SDL fullscreen switch causes persistent
                    display corruption
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: xlinuxro at yahoo.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Created attachment 84944
  --> https://bugs.freedesktop.org/attachment.cgi?id=84944&action=edit
Xorg log

When SDL has a window open which is the same size as the screen and it switches
to fullscreen mode it sometimes breaks the driver and an Xorg restart is
required.  After the SDL application exits the whole screen continues to have
corrupted display.  It seems like old data from the window is sometimes
displayed.  Or sometimes just random image corruption appears.  It only happens
if the non-fullscreen SDL window is exactly 1920x1080 (the size of my screen). 
I noticed this problem when watching 1080p video with ffplay (from ffmpeg), but
I have created a small program to reproduce the bug have attached it to this
report.

Program versions (all from git):
Xorg: 1.14.2.902
xf86-video-intel: 2.21.15
libdrm: 2.4.46
pixman: 0.30.2
libXdamage: 1.1.4

$ uname -a
Linux namdle 3.10.10-namdle+ #5 SMP Fri Aug 30 21:12:29 EDT 2013 x86_64
GNU/Linux

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