Every night, I turn on some white noise to help me sleep; but if it suddenly stops, I can't sleep. TDE seems to go into the display manager (which is set as LightDM since TDM didn't seem to work) every 30 minutes. I've looked all through the control panel, and I didn't see any options for disabling this. How do I do this? I don't want to switch over to IceWM when I go to bed so the audio doesn't cut out.