title: Ubuntu sound/network/USB trouble after suspend , how to restart
body: <p>I had a lengthy problem with Ubuntu 14.04 with Lenovo S20-30: after resuming suspended session some things break:</p>
  
  <ul>
  <li>USB stops recognizing devices
  
  <ul>
  <li>due to this the webcam and bluetooth stop working</li>
  </ul></li>
  <li>NetworkManager goes to sleep and no internet connections are made </li>
  <li>Sound stops or hangs up in false "Headphones" mode, 
  
  <ul>
  <li>or "Dummy" output is shown in Settings->Sound</li>
  </ul></li>
  </ul>