Whenever I plug a set of headphones or an aux cable into the headphones jack the computers speakers turn off, but no audio comes out of the headphones or the aux cable.


First of all, lets keep it Ubuntu related ;) and second that means your plugin in the wrong aux port:) their are many times two audio ports, and only one will work with most headphones, also certain headphone aren't compatable


Updating ALSA by going to https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS fixed the problem.

  • updating how? please explain fully what you did otherwise a future reader of this question will not have any idea how you resolved this.
    – fossfreedom
    Nov 13 '13 at 11:47

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