[Mesa-dev] [Bug 105013] [regression] Video playback is corrupt with Mesa 17.3 (but is fine with 17.2)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105013

            Bug ID: 105013
           Summary: [regression] Video playback is corrupt with Mesa 17.3
                    (but is fine with 17.2)
           Product: Mesa
           Version: 17.3
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: GLX
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: daniel.van.vugt at canonical.com
        QA Contact: mesa-dev at lists.freedesktop.org

[regression] Video playback is corrupt with Mesa 17.3 (but is fine with 17.2)

THESE STILL WORK:

gst-play-1.0 --videosink glimagesink bbb_sunflower_1080p_60fps_normal.mp4
gst-play-1.0 --videosink xvimagesink bbb_sunflower_1080p_60fps_normal.mp4
gst-play-1.0 --videosink ximagesink bbb_sunflower_1080p_60fps_normal.mp4

THESE DON'T WORK:

gst-play-1.0 --videosink clutterautovideosink
bbb_sunflower_1080p_60fps_normal.mp4
totem bbb_sunflower_1080p_60fps_normal.mp4

Specifically the corruption only occurs under the combination of:

Xorg +
VA-API (gstreamer1.0-vaapi) +
clutterautovideosink (libclutter-gst-3.0-0) +
Mesa 17.3.3

So that's includes the default video player (totem) in Ubuntu 18.04's default
session :(

We first noticed the regression when Ubuntu 18.04 upgraded Mesa
from: 17.2.4-0ubuntu2 (WORKING)
to: 17.3.3-0ubuntu1 (FAILS)

One workaround that works is to downgrade to these specific packages:

https://launchpad.net/ubuntu/+source/mesa/17.2.4-0ubuntu2/+build/13697262/+files/libgl1-mesa-glx_17.2.4-0ubuntu2_amd64.deb
https://launchpad.net/ubuntu/+source/mesa/17.2.4-0ubuntu2/+build/13697262/+files/libglapi-mesa_17.2.4-0ubuntu2_amd64.deb

More information: https://launchpad.net/bugs/1747744

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