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PC Graphics

Lachesis
Journeyman III

My displays have a refresh rate issue, I think

https://www.youtube.com/watch?v=p9O-bMyGAFc&ab_channel=Lachesis

My graphics card is an AMD Radeon HD 7900 Series.

Everytime I'm playing a game, I've got these blinking lines that appear on my 2 monitors. They started appearing when I plugged my second monitor in. 

My first monitor's refresh rate is 60Hz and its resolution is 1366x768. It was plugged in the DVI port, and I used DVI to VGA adapter.

When I got my second monitor (60Hz/1920x1080), I used the port that used to be the one where my first monitor was plugged in. Therefore, I used a mini display port to plug my first monitor in, through a mini DP to VGA adapter.

I don't know what to do, the internal parameters of my screens are well adjusted, and I don't know how to make these disappear.

Writing this in english made me struggle so much, I'm sorry if something's not understandable.

I really hope someone here can help me, thanks in advance !

 

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