Yes I had the same thought; that this sounds specific to ffmpeg libraries/apps. Like VLC.
Although Chrome uses ffmpeg it contains its own private (older) version. So that's why Chrome/Chromium would be unaffected. Totem wouldn't usually be affected, except that having gstreamer1.0-libav installed makes GStreamer apps like Totem use the affected/broken ffmpeg version. Maybe try forcefully reinstalling suspected packages. For example: sudo apt install --reinstall libavutil-ffmpeg54/xenial libavresample- ffmpeg2/xenial libavformat-ffmpeg56/xenial libavfilter-ffmpeg5/xenial libavdevice-ffmpeg56/xenial libavcodec-ffmpeg-extra56/xenial libavcodec- extra/xenial ** Also affects: ffmpeg (Ubuntu) Importance: Undecided Status: New ** Changed in: ffmpeg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1755144 Title: No audio on vlc or videos sound or video files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1755144/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs