This will be applied the next time Pulseaudio is released into Oneiric. Meanwhile, you can try editing /usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones.conf and change
[Element Front] switch = off volume = off
to
[Element Front] switch = mute volume = zero
This will be applied the next time Pulseaudio is released into Oneiric. Meanwhile, you can try editing /usr/share/ pulseaudio/ alsa-mixer/ paths/analog- output- headphones. conf and change
[Element Front]
switch = off
volume = off
to
[Element Front]
switch = mute
volume = zero