The computer monitor is black.

Many computers have a built-in energy saving feature that puts the system to sleep after a specific
amount of idle time. The monitor will appear to be off, showing a black screen and the power light will
be amber.
• To awaken the system, move the mouse around or hit any key on the keyboard. Allow a few
seconds for the system to power up.
• If the system is not in sleep mode, make sure that the monitor’s power switch is on (the power
light will show green or yellow).
• Check to see that the power cord is plugged in tightly in back of the monitor and that the power
strip (surge protector) is on. Also make sure that the monitor cable is tightly connected to the
tower/desktop.
• If your monitor’s power is on and the cables are all OK but there is still nothing on the screen,
the cause could be that the monitor's brightness and/or contrast control have been turned down
and just need re-adjusting. These controls are on the monitor (location depends on
manufacturer).
• Before assuming the monitor to be faulty, it is worthwhile to substitute another monitor that is
known to work in order to establish that the video card of the PC is working. Normally such
faults as intermittent assortment of odd characters, perhaps some flashing in vivid colors on the
screen are indicative of a video card fault.
1. If the other monitor works properly then the monitor in question may be faulty.
2. If the other monitor does not work properly then the video card may be the fault. Follow
your district technology department’s procedure for reporting repair needs.