[Bug 37681] New: Tearing with composite extension

[Bug 37681] New: Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #1 from dack-ECQX0Ec6qkrk1uMJSBkQmQ@public.gmane.org 2011-07-01 17:34:33 PDT ---
I just tried the Fedora 15 LiveCD, which also exhibits tearing.  With the 2
most popular Desktop distributions exhibiting such a major video issue, I would
think this would be getting more attention.

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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #2 from runetmember-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2012-03-07 09:16:26 PST ---
Still issue on Kubuntu 12.04 with 7200/7300 Go, 8600M GT, 9600 GT, GT 220M, and
so on.

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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #3 from runetmember-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2012-04-13 13:13:31 PDT ---
Samples:
http://rghost.ru/37220226 - Tearing test 1280x720
http://rghost.ru/37220233 - Tearing test 720x406
http://rghost.ru/37220247 - Tearing test 640x360

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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #4 from spb.nevill-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2012-04-14 23:20:46 PDT ---
Same here on LG S900-U laptop, Nvidia 8600M GT, Kubuntu 12.04, both with
nouveau and Nvidia drivers. I hope it gets fixed. it is painful to look at.

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[Bug 37681] Tearing with composite extension

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https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #5 from Joe <random342-EMRzualFZlQ@public.gmane.org> ---
Actually it's even worse on my end. Tearing does not go away on nouveau's
drivers no matter what I do. Even with compositing completely disabled, opengl
video output still tears. The best I can do is enable opengl compositing with
compton or something similiar and enable sync to Vblank, but there's still
tearing at the top of any fullscreen video even with opengl video output. I'm
on Arch with a Nvidia GTX 650. The tearing issue does not happen in the
proprietary drivers either. I hope this issue gets more attention as the
proprietary drivers have some other problems of their own for me.

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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=37681

--- Comment #6 from russianneuromancer-k+OT61UuxXo@public.gmane.org ---
Seems like tearing gone with Full Repaints VSync mode in KWin.

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[Bug 37681] Tearing with composite extension

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=37681

russianneuromancer-k+OT61UuxXo@public.gmane.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

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