Hi there, For some reason volume control widget is not showing in menu bar of my system. I am feeling really bad without that widget to play songs and adjust volume. Then I have restarted pulse audio service that won't work. Finally i come up with solution to fix this problem. Please follow the steps below I have mentioned to fix this problem - Go to "System settings -> Sound Settings" - In "Sound settings", you have option like " Show sound volume in the menu bar " with checkbox - Please enabled it and check if volume bar appears in menu bar of the system Please refer the following link for more info about this problem, http://askubuntu.com/questions/470702/volume-control-not-showing-in-ubuntu-14-04-unity-top-panel/470713
I am posting here that what I have experienced in Industry Life and Personal life. I hope it will help you in some moment where you struggle with something like I was.