|Anh Bon, many have a 'sleep' or 'hibernate' function that shuts the monitor off after so long (usually several minutes) a period of inactivity to save juice. Yours? |
Those that 'sleep' can usually be 'wakened' by simply moving the mouse. If so, it's a setting (could be either 'puter or monitor) that can usually be adjusted to suit your preferences or turned 'off' completely.
Ed in Texas