Ara, I install the 14.04, and find there are use 'unity-control-center sound' for change sound setting.
First run 'unity-control-center sound', and insert the microphone in front panel, the input bar could be adjusted. But when I plug out the microphone, the input bar is still enabled, and you can change the input level, in next time when you insert microphone again, you will find the input level was the latest change which is we changed without inserting microphone. And I found soucecode is similar with gnome-control-center sound-nua, I'll try to made a patch for trusty. ** Changed in: gnome-control-center (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1291862 Title: [soundnua]mic volume adjust bar is gray if you open sound-nua input tab earlier than plugging micphone Status in GNOME Control Center: New Status in OEM Priority Project: Confirmed Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: gnome-control-center 1:3.4.2-0ubuntu0.13.1 in precise updates. In laptop you can't reproduce this issue, cause there have 'Internal Microphone' already. I find this issue im my PC, there are two jacks in front panel, input and output. 1. Install system and log in to Desktop 2. Connect the headphone in front panel 3. Open sound settings menu and click Input tab I made an screenshot for it. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1291862/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp