PulseAudio or ALSA, I cannot tell which, randomly mutes itself for no reason. This is EXTREMELY frustrating. It happens typically when I am playing a game, but can also happen when playing a movie. I have tried muting my microphone when not using it; this does nothing. I have also tried googling for fixes, and have found nothing. Any suggestions?

  • just try updating system – Chinmaya B Jun 14 '14 at 19:03
  • Kill pulseaudio from terminal on login, then launch it again. Can you post the output from terminal when it mutes? By mutes, do you mean you can unmute it after with the key? Or it stops completely? – Tim Jun 14 '14 at 19:24
  • If sounds stops randomly, this is certainly a pulseaudio problem: you can remove Pulseaudio and stay without it in the case you have only one sound device (internal sound card and no bluetooth or other ) . At least,removing it temporarily is a good test for your problem.

  • To remove it:

    sudo apt-get purge pulseaudio
    sudo apt-get install gnome-alsamixer

    Reboot and set the volume with the Gnome Alsa mixer (in the multimedia menu), or alsamixer in a terminal.

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