This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox 85 Green Video Playback

  • 3 replies
  • 1 has this problem
  • 7 views
  • Last reply by jonzn4SUSE

lucicex
lucicex
more options

Hello Firefox Forum,

I get green videos when using hardware acceleration. intel_gpu_top shows decoding action when I start firefox with: MOZ_WAYLAND_DRM_DEVICE=/dev/dri/renderD129 LIBVA_DRIVER_NAME=i965 MOZ_X11_EGL=1 MOZ_WEBRENDER=1 firefox

There's only 3 lines of error in the console, so I don't think it's related:


(firefox:12623): GLib-GIO-WARNING **: 22:01:35.112: /etc/xdg/kde-mimeapps.list contains a [Added Associations] group, but it is not permitted here. Only the non-desktop-specific mimeapps.list file may add or remove associations. [Child 12816, MediaDecoderStateMachine #1] WARNING: Decoder=7fb5e2473800 state=DECODING_METADATA Decode metadata failed, shutting down decoder: file /build/firefox/src/firefox-85.0/dom/media/MediaDecoderStateMachine.cpp:368 [Child 12816, MediaDecoderStateMachine #1] WARNING: Decoder=7fb5e2473800 Decode error: NS_ERROR_DOM_MEDIA_DEMUXER_ERR (0x806e000c) - virtual RefPtr<MP4Demuxer::InitPromise> mozilla::MP4Demuxer::Init(): No MP4 audio () or video () tracks: file /build/firefox/src/firefox-85.0/dom/media/MediaDecoderStateMachine.cpp:3465

(/usr/lib/firefox/firefox:14321): GLib-GIO-WARNING **: 22:13:43.119: /etc/xdg/kde-mimeapps.list contains a [Added Associations] group, but it is not permitted here. Only the non-desktop-specific mimeapps.list file may add or remove associations.


Can anyone help me identify the issue? I would really like to use the hw acceleration.

With best regards LuxidEx

Hello Firefox Forum, I get green videos when using hardware acceleration. intel_gpu_top shows decoding action when I start firefox with: MOZ_WAYLAND_DRM_DEVICE=/dev/dri/renderD129 LIBVA_DRIVER_NAME=i965 MOZ_X11_EGL=1 MOZ_WEBRENDER=1 firefox There's only 3 lines of error in the console, so I don't think it's related: (firefox:12623): GLib-GIO-WARNING **: 22:01:35.112: /etc/xdg/kde-mimeapps.list contains a [Added Associations] group, but it is not permitted here. Only the non-desktop-specific mimeapps.list file may add or remove associations. [Child 12816, MediaDecoderStateMachine #1] WARNING: Decoder=7fb5e2473800 state=DECODING_METADATA Decode metadata failed, shutting down decoder: file /build/firefox/src/firefox-85.0/dom/media/MediaDecoderStateMachine.cpp:368 [Child 12816, MediaDecoderStateMachine #1] WARNING: Decoder=7fb5e2473800 Decode error: NS_ERROR_DOM_MEDIA_DEMUXER_ERR (0x806e000c) - virtual RefPtr<MP4Demuxer::InitPromise> mozilla::MP4Demuxer::Init(): No MP4 audio () or video () tracks: file /build/firefox/src/firefox-85.0/dom/media/MediaDecoderStateMachine.cpp:3465 (/usr/lib/firefox/firefox:14321): GLib-GIO-WARNING **: 22:13:43.119: /etc/xdg/kde-mimeapps.list contains a [Added Associations] group, but it is not permitted here. Only the non-desktop-specific mimeapps.list file may add or remove associations. Can anyone help me identify the issue? I would really like to use the hw acceleration. With best regards LuxidEx

All Replies (3)

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
more options

Please provide steps to replicate and provide links to the video(s). Are you using KDE or Gnome? Make sure you have the latest FFmpeg and libavcodec packages are updated. see screenshot

Can you download a separate version of Firefox to a folder and run it from there to test? https://www.mozilla.org/en-US/firefox/all/#product-desktop-release


Operating System: openSUSE Tumbleweed 20210130 KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 Kernel Version: 5.10.9-1-default OS Type: 64-bit Processors: 8 × Intel® Core™ i7-4810MQ CPU @ 2.80GHz Memory: 31.0 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics 4600

Modified by jonzn4SUSE

lucicex
lucicex Question owner
more options

It seems to affect all videos, I will try your suggestions and response back.

Thank you for your answer. I am using KDE.

Edit: I tried running firefox seperately downloaded into /tmp/ with:


MOZ_WAYLAND_DRM_DEVICE=/dev/dri/renderD129 LIBVA_DRIVER_NAME=i965 MOZ_X11_EGL=1 MOZ_WEBRENDER=1 ./firefox

Then I edited: about:config

media.ffmpeg.vaapi.enabled = true

restarted and that's everything I need to get the green playback.

I have installed ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10.2.0 (GCC)


and this ffmpeg seems to bring along the libav packages.

Best Regards

Modified by lucicex

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
more options

My media.ffmpeg.vaapi.enabled was false, changed it to true and no issues. I'm running Nightly.