Listen to the computer and look at the lights If the light on the display remains off, the display is not receiving power from either the wall outlet or the power adapter. Make sure the display has power and the power light comes on when the power button is pressed. This resets the electronics on the display. If the display has a detachable cable, obtain a second display cable for testing purposes.ĭisconnect the display power cable, wait about 30 seconds, reconnect the cable and then turn on the display. This includes removing web cameras, USB devices, thumb drives, camera-type memory cards, and other displays. Since the recent windows update was installed on your computer.ĭo the following things to prepare for troubleshooting:ĭisconnect all connected devices from the computer except the mouse, and keyboard. Thank you for posting your query, I'll be more than glad to help you outĪs I understand the screen isn't displaying on the alternate monitor/TV anymore, To HP Forums, this is a great place to get support, find answers and tips,
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