Public bug reported:
Steps:
1. Install Ubuntu 14.04.1 image
2. launch "System Settings" -> "Sound"
3. press "Volume Down" until mute
4. press "Volume Down" for several times then press "Volume Up" immediately
5. repeat step 4 for several times
Excepted result:
everything should just works
Actual result:
system auto switch between mute and unmute automatically and repeatedly.
Once the issue is reproduced we can found cpu is running at 100% by several
processes:
* pulseaudio
* unity-control-center
* unity-panel-service
The issue will last until we close the "Sound" window.
unity-settings-daemon version is 14.04.0+14.0420140606-0ubuntu1
** Affects: unity-settings-daemon (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1396464
Title:
Audio switch between mute and unmute automatically and repeatedly
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