On a Windows 7 laptop, is there a way to see exactly what device or process triggered the screen to turn on?
I'm referring to the "screen off" mode where the notebook is still on, but the screen has turned off due to inactivity. Not sleep mode.
Further clarification if needed:
After a set period without user input, Windows power-saving features allow the laptop to progress through various states:
- Fully On → 2. Screen Dim → 3. Screen Off → 4. System Sleep → 5. System Hibernate
I want to be able to detect or see what process or device caused the computer to go from State 3 to State 1 as shown above. For example, if I trigger the screen to shut off (State 1 to State 3) and then the screen turns back on again (State 3 back to State 1), how can I tell what caused it?