[SOLVED] Why does my secondary screen flicker ?

Apr 28, 2022
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i have two screens, one is my main screen and the other is my secondary and when i play a game my second screen starts to flicker. The secondary screen is kind of old so that why i use a converter. I tried everything idk why it flickers. I have:

rtx 2070
i5 9700f
16 gigs RAM
800 watt psu
 
i have two screens, one is my main screen and the other is my secondary and when i play a game my second screen starts to flicker. The secondary screen is kind of old so that why i use a converter. I tried everything idk why it flickers. I have:

rtx 2070
i5 9700f
16 gigs RAM
800 watt psu

Are both screen se tot the same resolution? If not, make them the same and see if that fixes it.