adding skype to systray whitelist solve the issue
giovanni@whale:~$ gsettings get com.canonical.Unity.Panel systray-whitelist ['JavaEmbeddedFrame', 'Wine', 'scp-dbus-service', 'Update-notifier', 'Skype'] giovanni@whale:~$
adding skype to systray whitelist solve the issue
giovanni@whale:~$ gsettings get com.canonical. Unity.Panel systray-whitelist rame', 'Wine', 'scp-dbus-service', 'Update-notifier', 'Skype']
['JavaEmbeddedF
giovanni@whale:~$