Heureka! I found out which app(s) trigger this behaviour (so it might not be a indicator-sound bug):
Starting skype with a LoginSound (this well known waking up sound) seems to trigger exactly the described behaviour. The sound icon goes red and stays red even if the sound already subsided... Strangely JDownloader seems to have the same effect. Although this app doesn't have sound at all it seems to do exactly the same. As far as I was able to test it, it's the only Java application that does this So this is something everyone should be able to reproduce, I'm pretty sure this is something not specific on my system -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-sound in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1301482 Title: ubuntu 14.04 - sound icon is always blocked Status in “indicator-sound” package in Ubuntu: Incomplete Bug description: In Ubuntu 14.04 Whenever the sound is muted the icon is red (so it seems to recognize blocked sound). However there is definitely nothing playing and also pavucontrol, shows that no sound is playing. So it seems to be a bug package: indicator-sound 12.10.2+14.04.20140401-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1301482/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
