I think you mean "totem", not "vlc", right? That complaint from totem is half-expected. I thought gstreamer had alternative plugins to cover common mp4 cases, but I can't find those alternatives. So we're stuck with gstreamer1.0-libav, which depends on your broken ffmpeg installation.
And that's what this seems to be. A uniquely broken ffmpeg configuration. It doesn't seem to be a reproducible problem on other machines. If I had more ideas on how to fix it (other than a complete reinstall) then I would suggest them. ** Changed in: pulseaudio (Ubuntu) Status: Incomplete => Invalid ** Changed in: ffmpeg (Ubuntu) Status: Incomplete => New -- 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