Main monitor goes black for a couple of seconds?

[Declan001]

I recently installed a new acer monitor, whenever I've been using my main monitor on a game for example and press on my second monitor my main monitors screen goes black for a second or two, looked around but can't find the answer, any ideas? Thanks in advance

[Slottr]

When you press on the screen?

[Declan001]

1 hour ago, Slottr said:

When you press on the screen?

Yes, so ill be playing a game on the main and ill press on chrome for example on the secondary, then the main will go black for 2 seconds

[Slottr]

21 minutes ago, Declan001 said:

Yes, so ill be playing a game on the main and ill press on chrome for example on the secondary, then the main will go black for 2 seconds

Because you're probably in a full screen application, which will go black for a second to readjust the video when tabbing out 

[Declan001]

1 hour ago, Slottr said:

Because you're probably in a full screen application, which will go black for a second to readjust the video when tabbing out 

Thanks for the reply, just seemed to never do it on my old 1080p monitor, even with full screen applications