As per the upstream bug (closed Resolved, Not Gnome), it seems like this is more likely an issue in PulseAudio settings in the Ubuntu version where this bug was reported than in gnome-volume-control.
We have further proof of this since it is probably a device-specific issue: my card doesn't behave that way, and AFAICT gnome-volume-control doesn't special-case sound cards. Are you still seeing this issue? If so, for what release of Ubuntu? If you're still seeing this, please also try to run the latest release or the development release in a Live Session (directly on the CD without installing), to see if the bug can still be reproduced. Thanks in advance. ** Also affects: gnome-media via https://bugzilla.gnome.org/show_bug.cgi?id=618976 Importance: Unknown Status: Unknown ** Changed in: gnome-media (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/463618 Title: gnome-volume-control cannot disable mic playback -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs