Can you provide more detail? What's the make/model/model number of your computer & monitor? How are you connecting it - VGA, DVI, or HDMI? Has it ever worked before? Is the monitor displaying "no signal" on the screen?
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.