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Videos play with sound but a black picture, or do not load at all

(#793) Bug Needs triage media
by RexSystem edited originally by @stemy2 on GitHub

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Comment by @ErenayDev
RexSystem 1 vote edited originally by @ErenayDev on GitHub
Binary: stable build 508 (3250c73), 2026-06-06 21:26:08 UTC, Electron 39.2.7, Linux 7.1.9-arch1-2 (x64), desktop stable 0.0.8 Web: stable build 508 (3250c73), 2026-06-06 21:26:08 UTC, Chrome 151.0.0.0, Linux (x86) I was wrong in my last comment. Looks like the problem is in the backend side. Because its sending only sound. Not the screen. I couldnt upload reproduce video to GitHub due to file size limit. So i uploaded it to Fluxer. But looks like theres something different. https://fluxerusercontent.com/attachments/1491534074373863039/1542589300439257088/2026-08-27_18-35-30.mp4 
❯ ffprobe 2026-08-27_18-35-30.mp4
ffprobe version n9.0.1 Copyright (c) 2007-2026 the FFmpeg developers
  built with gcc 16 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan --disable-decoder=magicyuv
  libavutil      61.  1.101 / 61.  1.101
  libavcodec     63.  1.101 / 63.  1.101
  libavformat    63.  1.101 / 63.  1.101
  libavdevice    63.  1.101 / 63.  1.101
  libavfilter    12.  1.101 / 12.  1.101
  libswscale     10.  1.101 / 10.  1.101
  libswresample   7.  1.101 /  7.  1.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2026-08-27_18-35-30.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf62.3.100
  Duration: 00:03:24.97, start: 0.000000, bitrate: 552 kb/s
  Stream #0:0[0x1](und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080, 504 kb/s, 43.23 fps, 60 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc62.11.100 libx264
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 37 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
I recorded above video. then compressed it via online tools in the internet. then i uploaded it to fluxer, and it works! probably the compress site converted it to h264 (baseline version) and avc1, so it works now. the uncompressed original video ffprobe output: 
❯ ffprobe 2026-08-27_18-35-30.mp4
ffprobe version n9.0.1 Copyright (c) 2007-2026 the FFmpeg developers
  built with gcc 16 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan --disable-decoder=magicyuv
  libavutil      61.  1.101 / 61.  1.101
  libavcodec     63.  1.101 / 63.  1.101
  libavformat    63.  1.101 / 63.  1.101
  libavdevice    63.  1.101 / 63.  1.101
  libavfilter    12.  1.101 / 12.  1.101
  libswscale     10.  1.101 / 10.  1.101
  libswresample   7.  1.101 /  7.  1.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2026-08-27_18-35-30.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf63.1.101
  Duration: 00:03:24.97, start: 0.000000, bitrate: 3678 kb/s
  Stream #0:0[0x1](und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 1920x1080, 3643 kb/s, 43.24 fps, 60 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
  Stream #0:1[0x2](und): Audio: opus (Opus / 0x7375704F), 48000 Hz, stereo, fltp, 25 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Two videos i tried: The video dont working: https://fluxerusercontent.com/attachments/1491534074373863039/1542558583101587456/2026-07-12_01-31-05.mp4 
❯ ffprobe 2026-07-12_01-31-05.mp4
ffprobe version n9.0.1 Copyright (c) 2007-2026 the FFmpeg developers
  built with gcc 16 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan --disable-decoder=magicyuv
  libavutil      61.  1.101 / 61.  1.101
  libavcodec     63.  1.101 / 63.  1.101
  libavformat    63.  1.101 / 63.  1.101
  libavdevice    63.  1.101 / 63.  1.101
  libavfilter    12.  1.101 / 12.  1.101
  libswscale     10.  1.101 / 10.  1.101
  libswresample   7.  1.101 /  7.  1.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2026-07-12_01-31-05.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf62.12.102
  Duration: 00:01:18.84, start: 0.000000, bitrate: 2232 kb/s
  Stream #0:0[0x1](und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 1920x1080, 2130 kb/s, 40.61 fps, 60 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
  Stream #0:1[0x2](und): Audio: opus (Opus / 0x7375704F), 48000 Hz, stereo, fltp, 94 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
============================ Working video (re-encoded to vp9) https://fluxerusercontent.com/attachments/1491534074373863039/1542558583101587457/2026-07-12_01-31-05.webm 
❯ ffprobe 2026-07-12_01-31-05.webm
ffprobe version n9.0.1 Copyright (c) 2007-2026 the FFmpeg developers
  built with gcc 16 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan --disable-decoder=magicyuv
  libavutil      61.  1.101 / 61.  1.101
  libavcodec     63.  1.101 / 63.  1.101
  libavformat    63.  1.101 / 63.  1.101
  libavdevice    63.  1.101 / 63.  1.101
  libavfilter    12.  1.101 / 12.  1.101
  libswscale     10.  1.101 / 10.  1.101
  libswresample   7.  1.101 /  7.  1.101
Input #0, matroska,webm, from '2026-07-12_01-31-05.webm':
  Metadata:
    COMPATIBLE_BRANDS: isomiso2mp41
    MAJOR_BRAND     : isom
    MINOR_VERSION   : 512
    ENCODER         : Lavf62.12.102
  Duration: 00:01:18.86, start: 0.000000, bitrate: 615 kb/s
  Stream #0:0: Video: vp9 (Profile 0), yuv420p(tv, progressive), 1920x1080, SAR 1:1 DAR 16:9, 60 fps, 60 tbr, 1k tbn (default)
    Metadata:
      ENCODER         : Lavc62.28.102 libvpx-vp9
      HANDLER_NAME    : VideoHandler
      DURATION        : 00:01:18.784000000
  Stream #0:1: Audio: opus, 48000 Hz, stereo, fltp (default)
    Metadata:
      ENCODER         : Lavc62.28.102 libopus
      HANDLER_NAME    : SoundHandler
      DURATION        : 00:01:18.861000000
================ Debug info: 
❯ vainfo --display wayland
Trying display: wayland
vainfo: VA-API version: 1.24 (libva 2.24.0)
vainfo: Driver version: Mesa Gallium driver 26.2.1-arch1.1 for AMD Radeon 610M (radeonsi, raphael_mendocino, ACO, DRM 3.64, 7.1.9-arch1-2)
vainfo: Supported profile and entrypoints
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointEncSlice
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointEncSlice
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointEncSlice
      VAProfileHEVCMain               :	VAEntrypointVLD
      VAProfileHEVCMain               :	VAEntrypointEncSlice
      VAProfileHEVCMain10             :	VAEntrypointVLD
      VAProfileHEVCMain10             :	VAEntrypointEncSlice
      VAProfileJPEGBaseline           :	VAEntrypointVLD
      VAProfileVP9Profile0            :	VAEntrypointVLD
      VAProfileVP9Profile2            :	VAEntrypointVLD
      VAProfileAV1Profile0            :	VAEntrypointVLD
      VAProfileNone                   :	VAEntrypointVideoProc

❯ uname -a
Linux erenay 7.1.9-arch1-2 #1 SMP PREEMPT_DYNAMIC Fri, 21 Aug 2026 22:18:59 +0000 x86_64 GNU/Linux
my video record command: (wl-screenrec) 
wl-screenrec -o eDP-1 -m 60 --codec hevc --audio --audio-device alsa_output.pci-0000_03_00.6.HiFi__Speaker__sink.monitor --audio-codec opus -f "record.mp4"
my convert command: 
ffmpeg -i input.mp4 -c:v libvpx-vp9 -c:a libopus output.webm
I hope this debug info helps to you
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