Dell Monitor Won T Turn On After Power Outage. Hold down the power button on the computer for 10 seconds with power still removed 4. Disconnect the monitor power cord from the rear of the monitor Press and hold the monitor power button in for 5 seconds Reconnect the monitor power cord to the rear of the monitor Turn the monitor on The floating redgreenbluewhite dialog box should appear on screen against a black background.

If you put the laptop to sleep in Stand By mode or hibernate it it will wake up. Some older monitors have a Power switch on the back similar to the Power switch on the back of a desktop computer. How to automatically start on turning computer back power on after power outage.
Ensure that the computer is connected to the docking station.
Run a Computer Diagnostic. Try to play with the power cord on it where it connect to the monitor look like a power board fail could be a leaking capacitor or a bubbled resistor even the ic board. Heres the behavior it exhibits when I press the power button. The computer should be turned off after a hard reset.

