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I updated to Ubuntu 16.04 a while ago and I haven't gotten the sound to work ever since. Oddly enough, there's sound when I start up my computer, but none afterwards. There are no sound output devices detected:

(click for image)

In addition, at some point, the volume indicator disappeared from my task bar, and there's no check box in Sound Settings to put it back.

When I run aplay -i, nothing appears. At one point, I tried everything suggested in this article on UnixMen.com, including unmuting everything in alsamixer, reinstalling Alsa and pulseaudio, and updating my sound drivers (although I'm really, really worried that this might have made the problem worse), and I got the sound to work for a while, but when I restarted later, it stopped working again.

How can I fix this?

Please let me know if there's any other information I can provide - this problem has been plaguing me for the past few months.

grooveplex
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Emily Yeh
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1 Answers1

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  • The command to display soundcards is aplay -l not aplay -i
  • As there is sound at startup , try to disable speech-dispatcher running
    sudo update-rc.d -f speech-dispatcher remove
    and reboot
  • If no luck, disable pulseaudio for testing, so you can check if underlaying alsa driver works fine. Run 3 commands::
    mkdir ~/.pulse
    echo autospawn=no > ~/.pulse/client.conf
    pulseaudio -k
    Now any audio softwares will use only alsa: test sound (check volumes and mute using alsamixer or install "alsamixergui ").
    If it is ok, pulseaudio is broken : reset it with
    mv ~/.config/pulse ~/.config/pulseold
    echo autospawn=yes > ~/.pulse/client.conf
    pulseaudio
    This will launch pulseaudio with new configuration ,test again.
laugeo
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