computer monitor question

[Lapchik]

Is it a monitor like this?


If these get too hot from dust collecting inside, they will shut off. If it is this old cathode ray tube type monitor, they just die after about 10 years for no apparent reason. Just need to blow it out if it is the heat problem. Make sure your cable is attached securely at both ends, and if the cable has screws, use them. Least likely but possible is that the video card is dying/dead. If you can hook your laptop up to the monitor, try that. At least you can narrow down whether it is the laptop or computer causing it.