The built-in speaker on the Z240 workstation(skylake) does not produce sound

Solution Verified - Updated -

Issue

  • The built-in speaker on the Z240 workstation(skylake) does not produce sound in
  • Changing the volume level does not fix the issue, nor does muting the built-in speaker channel and then unmuting.

Environment

  • Red Hat Enterprise Linux 6.7
  • Red Hat Enterprise Linux 7

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