it's doing the same with indicator or key, seems either a backend or a design issue
** Package changed: ubuntu-system-settings (Ubuntu) => indicator-sound (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to indicator-sound in Ubuntu. https://bugs.launchpad.net/bugs/1447010 Title: Set volume to zero does not turn Silent Mode on Status in indicator-sound package in Ubuntu: New Bug description: $ system-image-cli -i current build number: 179 device name: m75 channel: ubuntu-touch/vivid-proposed last update: 2015-04-21 18:09:15 version version: 179 Steps to reproduce: 1.Set volume to zero from Sound Indicator --->Volume or System-Setting-->Sound-->Ringer or Volume +/- key 2.Sound is mute Expected results: Device turn the Silent Mode on with a vibration Actual results: Sound is muted, but not turn Silent Mode on To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1447010/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
