The moment the signals are not being transferred correctly, your monitor - for instance as a second monitor - will just turn off. For instance, if you are using a Dell UltraSharp screen or similar monitors such as Samsung Ultrawide Curved Monitors, the sellers sometimes tend to send a HDMI cable that is not up to the task. Unfortunately, even the manufacturers would provide you a cheap HDMI cable such as sometimes Dell monitors do.
You wouldn’t believe it, but especially when you have a high screen resolution or an ultra-wide screen connected to your PC with a cheap HDMI cable, this problem is most likely to occur. Only these two solutions below will help you: You Need a High Speed HDMI Cable! When your monitor turns off and on just like that, in most of the cases, I would guess 90% it’s because the HDMI cable is not able to transfer the data from your PC and vice versa fast enough.
