[Nouveau] [Bug 98030] New: Stuttering video playback in totem after update to 1.19-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98030

            Bug ID: 98030
           Summary: Stuttering video playback in totem after update to
                    1.19-rc1
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: piotrdrag at gmail.com
        QA Contact: xorg-team at lists.x.org

After updating to xorg-x11-server-1.19.0-0.1.20160929.fc25 and
xorg-x11-drv-nouveau-1.0.13-1.fc25 (from
<https://bodhi.fedoraproject.org/updates/FEDORA-2016-a5c3ebe67a>) video
playback in totem stutters every few seconds to the point of being unwatchable.
It doesn't happen with video playback (e.g. YouTube) in Firefox, and system
generally works fine. Downgrading the update "fixes" the problem.


I'm using X11 with nouveau on a GT216M (GeForce GT 240M), no hybrid cards:

Providers: number : 1
Provider 0: id: 0x64 cap: 0x7, Source Output, Sink Output, Source Offload
crtcs: 2 outputs: 3 associated providers: 0 name:nouveau


Hans de Goede in <https://bugzilla.redhat.com/show_bug.cgi?id=1381014> kindly
helped to discover that xf86-video-nouveau-1.0.13 does not show this problem
with xserver-1.18.4, but does show it with xserver-1.19-rc1, and that using the
modesetting driver with xserver-1.19-rc1 makes the problem go away.

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