[Bug 1889784]

[Ronan Jouchet]

Hi.

Trying VAAPI/X11 on Nightly 81.0a1/20200807213618, `intel_gpu_top`
confirms HW acceleration is active, but ***all videos appears constantly
green, for the whole duration of the video (not just for a moment or a
few frames)*** . Is there already a bug for it, or should I file one?

- `MOZ_X11_EGL=1`
- `media.ffmpeg.dmabuf-textures.enabled:true` , `media.ffmpeg.vaapi.enabled:true` , `media.ffvpx.enabled:false`
- enhanced-h264ify forcing H264
- Arch, latest linux / xorg / intel drivers. Problem reproducible with both i965 and iHD drivers.

If already answered, sorry for the noise. If not, please tell me what
debug info you'd like me to share in a new bug.

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https://bugs.launchpad.net/bugs/1889784

Title:
  Hardware-accelerated video decoding (VA-API) broken in Firefox 79
  (Wayland)

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