Nothing on the Monitor? Here’s how to properly examine your computer’s screen Upgraded on Is nothing showing up on your monitor? Luckily, testing a monitor is among the easier computer troubleshooting steps. By fully examining your screen utilizing a logical troubleshooting process, you can be certain your monitor is or isn’t working correctly then take whatever action required to get back up and running. Testing a monitor can take from several minutes to a lot longer depending on the cause of the problem How to Test a Computer Monitor That Isn’t Working Follow these simple troubleshooting steps to test your screen: Check to make sure your monitor is around! Some monitors have more than one power button switch–affirm that they’re all switched on. Check for disconnected monitor power cable links. Your monitor may be working fine and your only problem be a loose or unplugged monitor power cable. Also be sure to look after any cable adapters which aren’t fully secured, such as a little connector that combines an HDMI or DVI cable to a VGA plugin, or vice versa. A disconnected monitor power cable may be the reason for your trouble if your monitor’s energy light is completely off. Check for disconnected monitor information cable connections. Again, your monitor might be turning on without a problem but no information can get to it since the Our monitor test cable which connects your monitor into your computer is disconnected or loose. A disconnected monitor data cable could be the cause of your trouble if your screen’s power light is still on but is either amber or yellow rather than green. Switch the monitor’s brightness and contrast settings completely up. Your monitor might be showing information but you can’t see it since these display settings are excessively dark. Most modern monitors include a single on-screen interface for all settings, such as brightness and contrast. If it turns out your monitor is not working at all then you will probably not have access to this interface. An older screen may have manual knobs for adjusting those settings. Make certain all monitors have been set up correctly (if that is really a dual-monitor installation ). This measure might seem overly general, however if you’re using a couple of monitors, it is likely that the extended displays work just fine however, the operating system isn’t using them correctly. This could be due to a number of things such as a missing/corrupt video card driver or a wrong installation procedure. As an Example, make sure a projector is on the laptop but not set up as Another screen (so it remains black), or become the projector has been configured as the primary display, and Thus the on-board screen is black