Question / Help Screen Tearing

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Pedro Pinto Ferreira

New Member
My setup is a 3-monitor setup and, whenever something's moving on a secondary monitor, whatever game I'm playing in Borderless Windowed mode starts having some tearing.

By turning V-Sync on in the game I'm playing it seems that something is assuming the Refresh Rate on my main display is 60Hz and not 144Hz (as it is configured). (This test has been made in League of Legends, FPS meter shows 60 when V-Sync is on and with something moving in another monitor, and 120+ when it's on without anything moving in the other monitors).

This becomes a major issue to me, since I often like to stream the games I play and in order to do so without screen tearing I need to disable preview mode in the broadcasting software but also because I like playing some games while watching to some livestreams, when I'm playing a slow paced game.


Rig:
i5 6600K
GTX 1080 Armor
GTX 750 Ti
16GB RAM
MSI Z-170A PCMATE

Note: This still happens even if I don't have the 750 Ti as a secondary GPU. I use it to encode video.
 
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Pedro Pinto Ferreira

New Member
BK-Morpheus said:
Here at point 5, you might find some more information about the multi monitor and mixed refreshrates problematic on Windows:
https://obsproject.com/forum/threads/common-mistakes-and-how-to-avoid-them.78116/
Click to expand...
Thanks a lot for the fast reply!

Does this mean it's impossible for me to do the same things at the same time without experience screen tearing, or should I change the refresh rate for all displays, this issue would be fixed?

Although there's a friend of mine that has the same setup as me and he doesn't have this issue.
 
BK-Morpheus

BK-Morpheus

Active Member
I suggest to google for some user feedback on that topic, as this has nothing to do with OBS.
Windows 8/8.1/10 can't handle mixed refreshrates properly when there is a GPU accelerated program showing on another more than one monitor.

Some say, you can try test fullscreen vs. borderless window mode in your game or experiment with Gsync On+Vsync off vs. Gsync On + Vsync On etc.

I don't have different refreshrates, so I can't test and give feedback. I just know, that this problem was discovered, since the first "gaming" monitors were available.
 
P

Pedro Pinto Ferreira

New Member
BK-Morpheus said:
I suggest to google for some user feedback on that topic, as this has nothing to do with OBS.
Windows 8/8.1/10 can't handle mixed refreshrates properly when there is a GPU accelerated program showing on another more than one monitor.

Some say, you can try test fullscreen vs. borderless window mode in your game or experiment with Gsync On+Vsync off vs. Gsync On + Vsync On etc.

I don't have different refreshrates, so I can't test and give feedback. I just know, that this problem was discovered, since the first "gaming" monitors were available.
Click to expand...
Yeah, it definitely doesn't have anything to do with OBS, I just assumed someone here would know since it's seems to be a very common issue and OBS always shows something moving while it's on.
I tried posting in the NVIDIA Forums, that's the best place to post I think, but no one answered yet.

I don't have G-Sync and for now, I am using Fullscreen while streaming, although that makes it impossible for me to ALT+Tab from the game because it would freeze the image displayed on the stream.

Maybe my "gaming" monitor is cheap and my friend's isn't, that's why I have this issue and he doesn't, I'm not very educated when it comes to monitors to be honest. Do you think it's possible?


Anyways, thanks a lot for the info, it certainly helped!
 
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