From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
Subject: [Bug 37681] New: Tearing with composite extension
Date: Fri, 27 May 2011 22:42:27 -0700 (PDT)
Message-ID: <bug-37681-8800@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=37681

           Summary: Tearing with composite extension
           Product: xorg
           Version: 7.6
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: dack-ECQX0Ec6qkrk1uMJSBkQmQ@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


See Ubuntu bug report for more details:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/600178

There is extremely bad tearing with both nouveau and nvidia proprietary driver.
 Tearing is present even without using a compositing window manager.  The only
way I've been able to stop the tearing is to do something like:

Section "Extensions"
 Option "Composite" "Disable"
EndSection

I'm not sure which component is at fault (XGL, composite, nouveau?).

I have tested both nvidia driver and nouveau under unity, classic, and classic
(no effects).  Changing driver makes no difference.  Single or dual display
makes no difference.

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