I'm getting no audio from headphones, but inbuilt speakers are working.

I'm using Kubuntu 18.04.

Settings in alsamixer are as follows:



Go to System Settings > Multimedia > Audio & Video > Device Preference

Make sure you set your headphones to a higher preference than inbuilt speakers for Music, Video, and whatever other audio categories you're using your headphones for.

  • Actually this have helped. Thank you very much!
    – wind39
    Aug 29 '18 at 20:18

Using side arrow keys in keyboard, select the Headphone tab in Alsamixer and press M button in keyboard. This will unmute headphone. Then it will show OO instead of MM (which means headphone is in mute mode)

  • not working :-(
    – uthej ks
    Jul 8 '18 at 10:55
  • Unmute the Master & Speaker also
    – Debajyoti
    Jul 8 '18 at 11:02
  • tried that too bro... still not working.
    – uthej ks
    Jul 8 '18 at 11:15

I seem to have lost the plug-and-play feature where the headphones simply just worked upon sticking them in the jack (or had a drop down/toggle menu at the top-right corner of the screen) when I upgraded from Ubuntu 16.04 to 18.04.

I've found that in Settings > Sound > Output I have two options. If I click on Speakers - Built-in Audio it uses the computer's speakers, but if I click on/test Digital Output (S/PDIF) - Built-in Audio, my headphones work.

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