Every user is faced with malfunctions of the computer or its components. The most common situation is when the indicator does not light up and the monitor does not turn on, although the device itself is started. There may be several causes of a malfunction, therefore, when diagnosing, all possible options should be considered.
Why the monitor does not turn on when the computer starts: hardware reasons
Hardware failure is one of the common problems. Identifying the exact cause of the defect is quite simple. In many situations, you can fix the source of the malfunction yourself.
Video adapter malfunctioning
This is one of the reasons for the lack of image on the monitor. The computer will function after turning on. The reason is the lack of signal. To solve the problem, you must carefully check the video card. The best option is to install the component in another personal computer. If the video card starts to function stably, then the defect lies in the display itself. A solution will require specialist advice.
Visual inspection is also necessary. Capacitors located on the board swell with prolonged or improper use. This leads to the failure of the video card. If such defects are found, a mandatory replacement of the part is necessary.
ATTENTION!A possible cause of the malfunction may be the incorrect location of the video card. If there is no signal, check whether the part is firmly inserted into the bus.
Lack of power on the monitor
This reason is very common. Manufacturers regularly improve and complement household appliances, including computers. Models that previously connected directly to the power supply now have their own power cable. Malfunctions of this component may cause a lack of power on the monitor.
In order to establish the exact cause, it is necessary to conduct a check. To do this, carefully examine the cable for visible damage. If any, repair is best left to professionals. Lack of necessary knowledge and skills can cause injuries or impair the stability of the entire PC.
IMPORTANT!During the inspection it is necessary to comply with safety regulations.
Cable outages
This is one of the possible options for the lack of image on the monitor and indicator activity. The signal is either too weak or completely absent, which leads to the termination of stable functioning. You may encounter a similar problem after cleaning the inside of the computer. After cleaning, the cable is loosely inserted into the socket, which leads to malfunctions in natural operation. To eliminate such defects, it is recommended to tighten the screws located on the plug.
A malfunction can be caused by a failure of the data cable itself. This is easy to notice with a simple check: the element begins to function when making small smooth movements in the nest. The signal in this case can come for a short time. Such actions indicate damage to the internal conductors of the cable itself. They can occur as a result of improper handling and lack of proper care. In this case, experts recommend abandoning the diagnosis and repair work. A failed data cable is practically not recoverable. Therefore, the most suitable option would be to buy a new part.
ATTENTION!In order to extend the life of the cable, it is necessary to eliminate the possibility of placing furniture on it (for example, the legs of chairs, an armchair or bedside table).
Program reasons
If there is no image on the monitor and the light is off, this may indicate some software problems. After setting the cause, the fault can be fixed as soon as possible.
The main reason is an error in the driver. This may be due to the lack of updates, incompatibility with the screen settings or due to obsolescence. In order to fix the problem, you must start the computer in safe mode. In the device manager, select "Monitors" and click idle devices. When opening, select a driver update.
ATTENTION! To start safe mode, use the F8 key.
Most modern manufacturers install "native" drivers when assembling computers. This greatly facilitates the further use of the unit. However, many models still need to independently install the necessary utilities. In order to avoid the occurrence of such situations, experts recommend carefully monitoring the updates, and before installing check both components for compatibility.
In the modern world, a computer is indispensable both at home and in the workplace. In the process of use, you can encounter various types of troubles. The lack of a monitor and power indicator is one of the common problems. A few tips and tricks will help you find the source of the problem and eliminate any defects that have arisen.
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