How to Fix No Sound After Mute and Unmute on XFCE

Tags: October 7, 2016 7:36 PM

Problem

There is no sound after doing mute then unmute on XFCE 4 Ubuntu 14.04.

Solution

Try running amixer command to see the status of the Master sound.

$ amixer get Master
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 65536 [100%] [off]
  Front Right: Playback 65536 [100%] [off]

In above result the status of Front Left and Front Right is [off]. Meaning it is still muted even has been unmuted from the XFCE panel. Try to toggle the switch to make it [on].

$ amixer set Master toggle
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 65536 [100%] [on]
  Front Right: Playback 65536 [100%] [on]
Try to play some music to see if it works.

Reference

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