Public bug reported:
Keyboard volume controls do not unmute speaker or headphone volume
channels, but only the master channel.
To reproduce:
1. Mute volume by opening pulse audio controls or from the widget in the task
bar panel
2. Try to unmute with keyboard by pressing unmute, or by changing the volume.
3. Open alsamixer and note that the master volume is unmuted and the volume is
changed, but the speaker and/or headphone volume channel is not unmuted.
To fix, the volume management settings in lubuntu-rc.xml can be changed
to
<!-- Keybinding for Volume management -->
<keybind key="XF86AudioRaiseVolume">
<action name="Execute">
<command>amixer -q -D pulse sset Master 3%+ unmute</command>
</action>
</keybind>
<keybind key="XF86AudioLowerVolume">
<action name="Execute">
<command>amixer -q -D pulse sset Master 3%- unmute</command>
</action>
</keybind>
<keybind key="XF86AudioMute">
<action name="Execute">
<command>amixer -D pulse set Master Playback Switch toggle</command>
</action>
</keybind>
For more info, see
https://ubuntuforums.org/showthread.php?t=1956323
https://askubuntu.com/questions/544754/lubuntu-14-04-unmute-sound-from-keyboard-not-work
** Affects: lubuntu-default-settings (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1747233
Title:
lubuntu-rc.xml does not bind volume control keys to pulse audio
controls
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