Although manufacturers of components for computer systems seek to ensure the reliable operation of their products, sometimes there are still situations when the equipment begins to behave "somehow wrong." There is nothing absolutely reliable in the world, and the most sophisticated high-tech products are no exception.
Thus, if the monitor blinks, then do not panic. The reasons can be very different: from banal ones, like a table leg on a signal cord; to complex damage to the switching power supply. And since it is not known why the monitor is blinking, then independently perform the minimum set of diagnostic measures - the "holy duty" of each user. And only after that carry the “suspect” for repair.
It often happens that the master from the service center, in front of the amazed owner of the "faulty" monitor, turns on the device and ... does not observe any malfunctions. Almost half of the calls end there. And the monitor blinks for a completely different reason, which you need to look for is not at all in it. It is difficult to say what is more unpleasant for the owner of the device in such a situation: to pay for pressing the power button or blush, feeling ... incomprehensible. By the way, if the laptop monitor is blinking, then all of the above is also true for him, except that the list of reasons is slightly different.
All of them can be divided into two groups - hardware (real existing) and software (virtual). Moreover, since the monitor is a window into a non-existent world, the second group can also partially affect the performance. Let's start with the first.
So, the most trivial reason is problems with the wire connecting the monitor input and the output of the video card. Factory marriage in conductors is rare, so most often the fault is on the conscience of the owner, who, when connected, forgot to tighten the fixing bolts on the plugs on both sides. It’s enough to “disturb” such a wire by pulling out the system unit, sliding the table or something else, so that one day to see that the monitor is blinking.
The next possible reason is a malfunction of the video card. It is possible that her cooling system began to work inefficiently due to pollution - hence overheating and abnormal operation.
Also, many people still remember the “disease” of some NVidia chips, which had a soldering defect and eventually started to fail. It is possible that in the video adapter the processor or memory became unusable. You need to check the performance with another video card.
But if the monitor blinks when turned on, then this may indicate a complex breakdown. Here is a list of the most common:
- the resource of backlight lamps in a liquid crystal display device has been developed. Only a replacement. Alas, work usually costs more than new parts, so you need to find generous craftsmen;
- Capacitors in the power supply “flowed”. Replacement required;
- damage in the matrix itself. One of the most difficult failures.
Trying to determine the cause yourself, you must not forget about the software component. Incorrect mode, scan frequency setup failure, driver error - all this can affect the operation of the monitor in the most unpredictable way. It is necessary to boot into the "Protection against failures" and check the operation.