No sound after upgrading to Ubuntu 10.04

  • Sometimes after upgrading from an earlier version of Ubuntu to Ubuntu 10.04 (Lucid Lynx), all sound output is lost or it's extremely quiet.

    To resolve this issue, open a terminal window and run the following:

    1. alsamixer

    Increase the sliders of "Master" and "Speaker" volume to maximum and it should work again.


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