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VMIX huge framerate drop when fullscreen activated
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Al1cante  
#1 Posted : Friday, December 8, 2017 5:27:22 PM(UTC)
Al1cante

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Hi all,

I noticed that when the fullscreen is not activated the preview input have excellent framerate, but when we activate fullscreen there is a huge framerate drop in the user interface.
Whould you know why?

We are on a 7700k with a GTX 970, in the fullscreen there is 2 outputs 1 fix image, 2nd the program out for an external recorder.

Thanks for your answers!
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kjones9999  
#2 Posted : Sunday, December 10, 2017 2:35:15 AM(UTC)
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try dialing back the external resolution.... if that makes a difference you need more GPU hardware power...
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sinc747  
#3 Posted : Sunday, December 10, 2017 7:04:38 PM(UTC)
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Is the frame drop just noticeable in vMix or in the output destination, too?

- Tom
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Ittaidv  
#4 Posted : Monday, December 11, 2017 3:57:47 PM(UTC)
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I noticed something similar some time ago. We solved it by matching the refresh rate and aspect ratio of the monitor to the internal framerate in vmix.

It was a 1200*1080 monitor at 60hz. When we set it to 1920x1080 and 50hz, we noticed vmix was more stable and had less latency and dropped frames.
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Al1cante  
#5 Posted : Tuesday, December 12, 2017 7:27:27 AM(UTC)
Al1cante

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Location: Paris
Hi all,


thanks for your answers.

Finally we found the reason, we were havins:
VMIX in 1080 60fps
3 screen in 1080 60fps
1 screen in 4K 24fps

If we were using the fullscreen output on the 4K everything was laggy, (like a LOT), when we put the 4K screen in 1080 60Fps everything when right again.
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