Sound settings show only dummy output

Asked by Tariq on 2019-03-28

I'm trying to use the built in speakers on my Dell XPS-13. But at the moment only "dummy output" is showing in my sound settings. I know this is similar to some other questions, but I've tried loads of various solutions online and none have worked.

Currently running 18.04.02 LTS. Sound was an issue in 16.04 LTS too, though. I've attempted most steps in the Sound Troubleshoot Procedure but no luck yet.

Diagnostic info from Step 3 in the Procedure (alsa related info), here:

And info from Step 4, here:

Any help would be greatly appreciated.

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