I've used this as work-around
Added a new keyboard shortcut which executes this:
/usr/bin/pacmd "set-source-mute alsa_input.pci-0000_00_1b.0.analog-stereo 1"
This is binded to 0xf8 (which is the mute key).
The only issue is that this doesn't toggle mute, so it only mutes and never unmutes.
I've used this as work-around pci-0000_ 00_1b.0. analog- stereo 1"
Added a new keyboard shortcut which executes this:
/usr/bin/pacmd "set-source-mute alsa_input.
This is binded to 0xf8 (which is the mute key).
The only issue is that this doesn't toggle mute, so it only mutes and never unmutes.