[Bug 711261] New: Black window in cube example

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=711261
  GStreamer | gst-plugins-gl | git

           Summary: Black window in cube example
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-gl
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: gemont at igalia.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=258740)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=258740)
Output of glxinfo

When running tests/examples/generic/cube/cube, the window that is created
remains black.
FPS information is printed regularly (remains at 60 FPS unless I set the
vblank_mode environment variable to 0, then I get around 1500-1600 fps).

This is with git gstreamer/gst-plugins-* updated today.

Attaching the output of glxinfo.

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