Ubuntu froze and I was forced to shut it down with brute force (holding the power button). Ever since then the sound settings have disappeared and I am not able to adjust the volume / select the output and etc. There is sound, the only thing missing is the settings for it. Here is a pic:

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(Linux Ubuntu 14.04 with GNOME desktop environment)

  • try this: killall pulseaudio -KILL and then pulseaudio -D – Ron May 6 '15 at 20:16
  • There was no process pulseaudio and the second 'Daemon startup failed' – Stenli S May 6 '15 at 20:24
  • Which GNOME version? – A.B. May 7 '15 at 7:23
  • I'm sorry but I'm not aware of the version of Gnome. Although I don't believe it's related to the problem I'm having. Same problem occurs while using the Unix Desktop Environment. – Stenli S May 7 '15 at 11:34

Try running the following command and then, reboot:

rm -r ~/.config/pulse; pulseaudio -k

Click here for more info.

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With me the problem was with pulseaudio-equalizer. After I removed the eponymous package all devices were back instantly. I suggest you try it.

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  • I doubt your issue was actually caused by pulseaudio-equalizer. However, (un-)installing that packages changes the PulseAudio configuration and restarts the PA daemon (see the other answer). This was likely what fixed the issue. – David Foerster Mar 2 '16 at 21:37

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