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Oranges86's questions

Martin Hope
Oranges86
Asked: 2020-11-12 15:30:15 +0800 CST
  • 1

I would like to start and use Firefox with the command MOZ_X11_EGL=1 without having to type MOZ_X11_EGL=1 firefox into the terminal each and every time (I use the command in order to enable vaapi video acceleration on X11).

  • How can I edit the existing Firefox shortcut in order to add MOZ_X11_EGL=1 ?
  • How can I create a completely new shortcut with MOZ_X11_EGL=1 ?

OS: Ubuntu 20.10, using the preinstalled Firefox version that shipped with Ubuntu.

shortcuts firefox
Martin Hope
Oranges86
Asked: 2020-11-11 17:22:01 +0800 CST
  • 3

My hardware:

  • Intel® Celeron(R) CPU J3455 @ 1.50GHz × 4
  • Mesa Intel® HD Graphics 500 (APL 2)
  • 7,4 GiB RAM
  • Ubuntu 20.10 64-bit, X11

According to several articles on the internet, Firefox v81 / 82 enables vaapi hardware video acceleration on Linux by default.

Looking at about:config via Firefox, I can confirm that media.ffmpeg.vaapi-drm-display.enabled is set to true and media.ffmpeg.vaapi.enabled is set to false.

I successfully installed the necessary drivers for my gpu via sudo apt-get install i965-va-driver vainfo, but Firefox still lacks hardware video acceleration when browsing Youtube (VP9). In addition, I also tried running Firefox via the terminal with the command MOZ_X11_EGL=1 firefox, which indeed starts Firefox, but without video acceleration (Youtube is still dropping a lot of frames).

vainfo:

MrSmith@MrSmith-NUC6CAYH:~$ vainfo
libva info: VA-API version 1.8.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_8
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.8 (libva 2.8.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 20.2.0 ()
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSliceLP
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSliceLP
      VAProfileJPEGBaseline           : VAEntrypointVLD
      VAProfileJPEGBaseline           : VAEntrypointEncPicture
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
      VAProfileVP8Version0_3          : VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointVLD

I read that it is necessary to switch to the new webrender in order to actually fully activate and use vaapi video acceleration. Is this true? If so, which about:config entry do I modify?

What am I missing here? How do I enable vaapi hardware video acceleration via Firefox for my Ubuntu 20.10 X11 installation?

firefox vaapi