preview screen is a static mess

[ghost knight]

I'm really new to OBS I have a monitor that is 100hz. While I was recording I noticed a lot of screen tearing, I later realised my monitor was set at 60hz so when I changed it to 100 the preview screen turned into a static mess
I've looked everywhere and cannot find the solution, again I've only been using OBS for a week or so and this is my first pc
Any help I'd be grateful

 

[ghost knight]

After wrestling with my camera finally managed to upload
Anyone know how to fix this and keep my monitor on 100hz I'd be grateful

 

[ghost knight]

I actually managed to fix the issue. I was running two HDMI cables (one was 2.0 and the other was 2.1)
I've since fixed this by purchasing another 2.1 HDMI cable.
As soon as I plugged it into the monitor and pc I immediately got 100hz so the issue was the wrong HDMI. Lessons were learned and the next monitor I purchase I'll make sure there's a display port cause my current on doesn't have one
Hope this helps someone in the future

 

[Lawrence_SoCal]

I recommend you research other threads on having screen refresh rate NOT being an even multiple of your capture FPS
ie, if capturing at 60fps, then 60Hz or 120Hz are your friend, and others.. not so much. It will depend on graphics driver, specific game, and more as to whether the mismatch will cause you issues

 

[ghost knight]

I know I've tried looking but couldn't find anything. I've found out that it's actually my capture card is capping me at 60hz
I tried to keep the canvas Res to 1080p but rescaled to 1280p to see if that helped but sadly the tearing and chopping just kept on happening. Thinking I may have to take out a loan for an elgato as it's seem the only way I can run 100hz without anything capping me.
Lol when I play games without the capture card everything runs perfectly, no lag, no screen tearing and no chopping