Does your monitor flicker sometimes or continuously? so you can fix it

The symptoms are very clear: a totally annoying flickering on the screen that often makes any task impossible for us. This will logically be worse the more flickering we have and less the less it occurs, and the real problem is that it is exponential as a rule. Once the symptoms have been detected, what are the causes that produce it?

We are going to offer a list of problems that throw it and the same solution in each point so that it is more comfortable to find the possible solution. And we say possible because the symptoms can be called flickering but the cause may be wrong and therefore the solution may not be valid. In any case, the ones with the highest projection by number of errors are the following:

with static desktop

Many users have the curious problem of flickering even without doing anything with their PC, standing at the desk and without moving a muscle. Therefore, doing anything with the PC becomes impossible if the flickering on our monitor is very high.

In this case, the solution could be a bad installation of the graphics card driver, be it iGPU or dedicated. The first thing we will have to do is go to the device manager, to the screen adapter section and check that there is no error, no problem associated with the GPU.

If everything is correct and there is no warning symbol on its icons or records, the ideal would be to download DDU and uninstall the driver we have, not in vain would we have to download the new one before doing this. If after installing the new driver we are not able to solve the problem, it is time to go to the next step.

Update frequency is key

Another common error is that for some reason that we often do not understand, the NVIDIA and AMD driver does not set the monitor's refresh rate correctly, creating flickering.

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The solution to this problem is as simple as entering the control panel of each driver and making sure that the correct update frequency is set. Normally, the market standard today is 60 Hz, so below that it should not be normal except on monitors that are too old.

Check video cable

Another problem (and this is very common) is a connection problem or breakage of an HDMI or DisplayPort cable. No matter what type of cable we have, be it HDMI, DP or VGA, the flickering problem on monitors does not understand the interface.

It's usually easy to spot this, because if the cable damage is physical, maybe connecting it to the GPU or monitor and doing the opposite will get you into a position that suits you. The solution in this case is to change the cable, as long as the GPU and monitor connections are not to blame for this problem, which is really rare.

Check the GPU

It is the least wanted by people, but the truth is that nowadays they have a lot to say. When installing the GPU it is possible that it did not fit correctly, that its contacts are not clean or simply those of the board, that any dust particles are making contact between them. Therefore it is recommended to install the GPU with the utmost care, not to allow the graphics card to warp.

The solution in this section is also basic: completely turn off the PC, remove power with the rear button of the PSU or by disconnecting it from the power, remove the GPU, clean the contacts with isopropyl alcohol or an eraser, blow into the PCIe slot and finally reinstall with everything clean.

Flickering on monitors, due to breakage?

Finally, it could be the monitor itself that is giving problems as such. Here the causes are more complicated but could have to do with anything from an internal derivation of power or data, to a simple setting.

Thus, the idea is to select the serial configuration of the monitor in its own menu and if it is not eradicated, look for possible physical damage to it. It could well be that the connections of this fail, due to dirt, due to a bad posture that the connector has had, due to an excess of current or suddenly no current etc...

If we do not find any damage or defect, we could have a very expensive paperweight at our side. And it is that flickering in defective monitors is also quite common, especially if there are many sudden power outages, where for some reason the panels with more Hz end up suffering this problem to a greater extent.

In this case, the ideal thing is that we make sure that it is the monitor that is failing by doing the previous steps described in this article, because if we send it to guarantee or RMA and it is not failing as such, it may cost us a lot of money to not be aware