You start up your laptop while getting a coffee across the room. You hear the usual chimes and doinks as it starts up. When you get to the machine although everything sounds OK there is no display. You were giving presentations yesterday. What do you check first?

A. Sleep mode

B. Brightness

C. LCD toggle

D. All of these

D

all of the above!

Answer: C) LCD toggle

Explanation:

LCD (Liquid crystal display) toggle is switching mechanism of LCD when present setting changes to another setting. The toggle switching can be present in two states that is display state and no display/blank state. According to the mentioned situation, Laptop's display might have got toggled after yesterday's presentation. The switching has changed the blank display settings, therefore no display is present due to LCD toggle even after logging in. LCD toggle should be checked firstly. Other options are incorrect because even if brightness is low, display is slightly visible. Sleep mode is state of power saving where application tend to slow the working to save power. Thus, the correct option is option (C).