Arch Linux

baal

Member

Registered: 2023-11-02

Posts: 36

Possible regression - h264 acceleration broke in browsers after update

Hi all,

After a recent update, h264 video acceleration broke in browsers. I experience this on two computers: on a gnome/wayland intel video (Intel Skylake GT2 [HD Graphics 520]) laptop in firefox, and on an x11/xfce amd video (AMD Radeon HD 6850) desktop in firefox and chromium. Other software (e.g. vlc) still accelerate. Vainfo looks normal. Please see details below.

Intel video laptop:

Linux version 6.5.9-arch2-1 (linux@archlinux) (gcc (GCC) 13.2.1 20230801, GNU ld (GNU Binutils) 2.41.0) #1 SMP PREEMPT_DYNAMIC Thu, 26 Oct 2023 00:52:20 +0000

vainfo
Trying display: wayland
vainfo: VA-API version: 1.20 (libva 2.20.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 23.3.5 ()
vainfo: Supported profile and entrypoints
      VAProfileNone                   :	VAEntrypointVideoProc
      VAProfileNone                   :	VAEntrypointStats
      VAProfileMPEG2Simple            :	VAEntrypointVLD
      VAProfileMPEG2Simple            :	VAEntrypointEncSlice
      VAProfileMPEG2Main              :	VAEntrypointVLD
      VAProfileMPEG2Main              :	VAEntrypointEncSlice
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointEncSlice
      VAProfileH264Main               :	VAEntrypointFEI
      VAProfileH264Main               :	VAEntrypointEncSliceLP
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointEncSlice
      VAProfileH264High               :	VAEntrypointFEI
      VAProfileH264High               :	VAEntrypointEncSliceLP
      VAProfileVC1Simple              :	VAEntrypointVLD
      VAProfileVC1Main                :	VAEntrypointVLD
      VAProfileVC1Advanced            :	VAEntrypointVLD
      VAProfileJPEGBaseline           :	VAEntrypointVLD
      VAProfileJPEGBaseline           :	VAEntrypointEncPicture
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline:	VAEntrypointFEI
      VAProfileH264ConstrainedBaseline:	VAEntrypointEncSliceLP
      VAProfileVP8Version0_3          :	VAEntrypointVLD
      VAProfileVP8Version0_3          :	VAEntrypointEncSlice
      VAProfileHEVCMain               :	VAEntrypointVLD
      VAProfileHEVCMain               :	VAEntrypointEncSlice
      VAProfileHEVCMain               :	VAEntrypointFEI

  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Lenovo driver: i915
    v: kernel arch: Gen-9 bus-ID: 00:02.0
  Display: wayland server: X.org v: 1.21.1.9 with: Xwayland v: 23.2.2
    compositor: gnome-shell driver: X: loaded: modesetting dri: iris gpu: i915
    resolution: no compositor data resolution: 1920x1080

extra/firefox 119.0-1 [installed]
extra/libva 2.20.0-1 [installed]
extra/mesa 1:23.2.1-2 [installed]
extra/glu 9.0.3-1 [installed]

Amd video desktop:

Linux version 6.5.9-arch2-1 (linux@archlinux) (gcc (GCC) 13.2.1 20230801, GNU ld (GNU Binutils) 2.41.0) #1 SMP PREEMPT_DYNAMIC Thu, 26 Oct 2023 00:52:20 +0000

vainfo
Trying display: wayland
Trying display: x11
vainfo: VA-API version: 1.20 (libva 2.20.0)
vainfo: Driver version: Mesa Gallium driver 23.2.1-arch1.2 for AMD BARTS (DRM 2.50.0 / 6.5.9-arch2-1, LLVM 16.0.6)
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            :	VAEntrypointVLD
      VAProfileMPEG2Main              :	VAEntrypointVLD
      VAProfileVC1Simple              :	VAEntrypointVLD
      VAProfileVC1Main                :	VAEntrypointVLD
      VAProfileVC1Advanced            :	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileH264High10             :	VAEntrypointVLD
      VAProfileNone                   :	VAEntrypointVideoProc

  Device-1: AMD Barts PRO [Radeon HD 6850] vendor: PC Partner / Sapphire
    driver: radeon v: kernel arch: TeraScale-2 bus-ID: 03:00.0 temp: 35.0 C
  Display: x11 server: X.Org v: 21.1.9 driver: X: loaded: radeon
    unloaded: modesetting dri: r600 gpu: radeon resolution: 1920x1200~60Hz
  API: EGL v: 1.5 drivers: kms_swrast,r600,swrast platforms:
    active: gbm,x11,surfaceless,device inactive: wayland
  API: OpenGL v: 4.5 vendor: mesa v: 23.2.1-arch1.2 glx-v: 1.4
    direct-render: yes renderer: AMD BARTS (DRM 2.50.0 / 6.5.9-arch2-1 LLVM
    16.0.6)

extra/firefox 119.0-1 [installed]
extra/chromium 119.0.6045.105-1 [installed]
extra/libva 2.20.0-1 [installed]
extra/mesa 1:23.2.1-2 [installed]
extra/glu 9.0.3-1 [installed]

Chromium also throws an error at me:

[2197:2197:1102/113839.877346:ERROR:gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2)

I identify the presence or lack of acceleration in the browsers as per arch wiki. (MOZ_LOG="PlatformDecoderModule:5" and chrome://media-internals etc.). h264ify is working (these hardware do not do vp9).

Please suggest how to troubleshoot this.

itaranto

Member

Registered: 2020-08-28

Posts: 17

Re: Possible regression - h264 acceleration broke in browsers after update

I'm experiencing the same in Firefox (I don't know about Chromium).

Setting media.ffmpeg.vaapi.enabled to true in about:config used to be enough to enable VA-API.

baal

Member

Registered: 2023-11-02

Posts: 36

Re: Possible regression - h264 acceleration broke in browsers after update

'chromium-wayland-vaapi' does work properly on the wayland/intel machine, so I shelved firefox for the time being on that one.

baal

Member

Registered: 2023-11-02

Posts: 36

Re: Possible regression - h264 acceleration broke in browsers after update

After a few updates I checked Firefox again, and vaapi acceleration is now working fine on the intel / wayland machine.