Hello, I figured I'd share a (not so obvious) solution to a stupid little problem I have been experiencing with my new Dell XPS 15 - 9530 touch screen laptop.

After a period of time, the screen would stop responding until a sleep, restart, or until I disabled and re-enabled the touch screen in device manager.

TURNS OUT - Dell is shipping these out with a kind of wonky setting...  Go your device manager (Google it if you don't know what it is) 

THEN - goto "Human interface devices" and double click on the "USB input device" - if you have more than one, disconnect any external mice you may have attached.

FINALLY - goto the "Power Management" tab and uncheck "Allow the computer to turn off this device to save power"... 

This has so far solved my issue...  and hopefully saves someone from a tech support call.

*******UPDATE - I had my system replaced and for some reason even with these modifications I was starting to have the screen problems again (after a long time perfect performance)...  SO - just to be safe, go back in to the device manager and turn off those same power management settings under "universal serial bus controllers"

The ones for mine (with all external devices disconnected) were Both "Generic USB Hub" and all 3 "USB Root Hub" devices (Including USB Root Hub xHCI)...  it ended up being all of them.

To reiterate, I disabled the power management on the internal USB hubs that power the mouse, keyboard and likely the touch input part of the screen.  

SO FAR - I have had no further problems...  I had to sacrifice some battery life, but I no longer am poking my screen to death in anger.  lol