Can anyone explain to me how I can get hardware acceleration to work in Firefox running on Debian? I have tried both default the packaged ESR and the the latest Firefox release directly form Mozilla.

All I ever get is “blocked by platform” in about:support and I have tried everything suggested in the Debian and Arch wiki. 🤷
https://wiki.debian.org/Firefox#Hardware_Video_Acceleration https://wiki.archlinux.org/title/Firefox#Hardware_video_acceleration

Running Debian 12 / Bookworm, Xfce, using Intel HD Graphics 530 (I’m using an Intel Core i7-6820HQ).

Edit: Looks like I found the cause for my problems: https://discuss.tchncs.de/comment/474822

  • CryptGoatOPEnglish
    3·
    1 year ago

    VLC and mpv are working just fine with hardware acceleration, confirmed it with intel_gpu_top.

    Still nothing on Firefox. Launched it with MOZ_X11_EGL=1, media.ffmpeg.vaapi.enabled is set to true. Tested with YouTube, still nothing. 😑

    • wolf@lemmy.zipEnglish
      1·
      1 year ago

      Sorry, I am out of ideas. I am running Firefox via Gnome on Wayland. The only thing I changed was the media.ffmpeg.vaapi.enabled flag within Firefox-ESR, everything else should be default (plus Firefox plugins which should not be relevant). Perhaps you could try to run Firefox-ESR with a new/default profile were you only change the media.ffmpeg.vaapi.enabled flag? Or a Debian live-cd with Gnome/Wayland?

      • CryptGoatOPEnglish
        3·
        1 year ago

        Well, looks like I have found the cause: the TearFree set to true appears to block HW compositing / acceleration in Firefox: https://wiki.archlinux.org/title/intel_graphics#Tearing I have now removed the config file and hardware accelerated video decoding now works just fine while running both Xfce and KDE Plasma.

        Thanks for all the input!