Audio disappeared after a reboot Ubuntu 16.04.2 LTS

Asked by Magnus on 2017-04-21

Alsa Information:

I have tried the various troubleshooting procedures from

Any help is highly appreciated.

Question information

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Ubuntu alsa-driver Edit question
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Solved by:
Mark Rijckenberg
Last query:
Last reply:

Did you try the first command in step one? I'd have thought it would have sorted it...

Not to insult your intelligence, just that if it once worked and now doesn't that's the command I go to.

If you shut the laptop then open it after a few seconds, does sound work OK?

Magnus (toxup) said : #4

it's a stationary computer. I don't have the .config/pulse file.

Do you have ~/.pulse


The ALSA Terminal output in

shows that lots of mixer channels are muted in alsamixer.

You need to unmute them using the M key in the console program called alsamixer

Then retest audio output using headphones and speakers.

Test all audio jacks at the front and the back of your PC.

Magnus (toxup) said : #7

Thank you! I feel like an idiot. wonder what caused it though.

Magnus (toxup) said : #8

Thanks Mark Rijckenberg, that solved my question.