I have a Windows Vista Dell hybrid and I want to hook it up to a TV to get the Internet on TV. I did so, but the TV screen goes black and tells me the signal is not compatible with input. The computer screen also goes black
Without knowing what kind of TV you are using and the connections it requires, we’re going to have to do a little troubleshooting to see if we can find and fix your problem.
TVs as Monitors
Many people look at their old TVs and think that they would make great computer monitors. The problem is that most older TVs have a display that is about 640×480 at best. In contrast, most video cards start at about 800×600 and most monitors support at least 1024×768. Because of this the picture is disappointing, to put it nicely. Newer digital and high def TVs support better resolutions, so your chances of success are higher if the TV is newer.
Most older TVs have one of three kinds of inputs - coaxial cable, RCA composites (the old yellow, red and white connectors) and the S-video connectors. Newer TVs may have DVI, VGA or DHMI inputs. Some even have specific PC inputs. Depending on your connectors, you may need to get an adapter for your connection - you can also get a wireless adapter that will eliminate a pile of cables around your computer.
Troubleshooting
Have you activated the TV as the second screen for your computer? Go to Start and Control Panel. Find the Display Settings and activate the second screen, which is your TV screen.
This error is often seen if the screen resolution on your computer is too high or is not supported by the TV - high resolutions are not supported by common S-video outputs. A good way to test this is to try a lower resolution on your computer and work your way up until you have a problem with the screen. To do this, find a blank spot on your desktop and right click on it. Choose Properties and then Settings. Choose Screen Resolution, then drag the bar to the left to lower it. Click on Apply. You can experiment by changing the resolution up by tiny increments.
Have you tried plugging the cable into the TV once the monitor is on? Some people don’t like this method because it can be hard on the hardware, but it is worth a try. Turn off the computer and plug the video cable into the monitor. Turn on the computer and wait until it loads the desktop. Unplug the cable from the monitor and plug it into the TV and turn the TV on.
Does your TV have a reset button on the back? If so, get a paperclip and poke it in the hole for System Reset.
Hopefully, one of these solutions will help watch your computer on your TV screen and give you the resolution you’re looking for.


