This has been occurring for several months and, while I would like to say after an update at some point, I couldn't say which update or what was actually updated. The problem is that when my Samsung Galaxy S5's screen is off, it will turn on for a few seconds before turning off again. This is expected behavior when I receive a notification, but more than half the time there is no new notification. It's to the point that I'm noticing the battery is draining because of this so I'd like to get the issue to stop. I tried GSam per a recommendation elsewhere online, but I think the post is old and the current version doesn't give information on apps turning on and off the screens (including how often and for how long). I'm not even sure it's an app vs system issue.
