While the computer is running, there may be problems with the monitor.
The most frequent of them is the absence of a signal, because of which the picture disappears from the screen.
A similar problem can arise for different reasons.
Physical failure of cables
First of all, you need to make sureMeans of connecting the monitor to the power network and to the computer. The signal may not be present if the integrity of the power cord or the connection is broken. It is worth to repeatedly disconnect and connect all the cables, if the signal is not present anyway, you can change the cables to others. They are consumables, their value does not exceed a couple of hundred rubles. You can buy them at any computer store or office equipment store. If the signal does not care, the reason for its absence is much deeper.
Often due to incorrect installation of programsOr because of the activity of malicious programs, the drivers responsible for the operation of the monitor are damaged. You need to reinstall them. But for this you need to use one more monitor. Its role can play a laptop or netbook monitor, as well as just another monitor. Before installing any driver, it is recommended that you make a system restore point if the installation fails.
The cost of a new LCD monitorCan range from 1500 to 10,000 rubles. Repair of the monitor can cost several thousand, so the user is free to choose between repairing and buying a new monitor.
Physical failure of the video card
For initial analysis of a video card failureJust look at it. It can be heavily dusted, the cooling fan can spin slowly or not spin at all. You can also see the state of the transistors on the board surface. If they are faulty, they will be either leaked or swollen.
If the video card looks completelyIt can be necessary to diagnose it. It can be carried out in a specialized service center. The computer on which the defective graphics card is installed can be repaired under warranty. The same can apply to a separately bought video card. But if the warranty expired, will have to repair the video card at its own expense.
To properly diagnose the monitor's statusMust be carried to the service center. A simple user can remember if there was excessive flickering of the monitor before it broke, perhaps a noise or an unpleasant smell emanated from it.
Most often, if the monitor is broken, then it is not corny included, which means that messages about the absence of a signal may not be present. But if it is, it indicates a partial failure of the video output.
If the monitor is on warranty, then repair itCan be made free of charge. Otherwise, you have to fork out a round sum. If repair is too expensive, you can buy a new monitor. Often the cost of repair is much higher.