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screen tearing on monitor

post #1 of 7
Thread Starter 
I'm running a Dell 27" 2560x1440 that is 60hz. I'm playing one game and that is Rise of Flight, a WW1 combat flysim.
The problem I have, is that without Vsync, I always get screen tearing. Forcing the FPS limit to 60 or 50 does not help. Only running Vsync helps.

I did also some testing on a old 19" Dell 1280x1024 that could be forced to 75hz only here the same screen tearing.

What could here be the problem, because according to all the literature if the FPS of a game is lower then the monitor refresh rate, no screen tearing would occur, but I still have tearing even at 75hz.
post #2 of 7
Screen tearing does not occur when the FPS of your game equals your refresh rate

So find a way to get your FPS at or above your refresh rate by lowering your in-game graphics settings.
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post #3 of 7
Thread Starter 
Your saying: set FPS limit to unlimited, lowering grapic adjustments, so that the FPS of the game is much higher then the refresh rate of the monitor and the tearing is gone
post #4 of 7
Quote:
Originally Posted by Toine3 View Post

Your saying: set FPS limit to unlimited, lowering grapic adjustments, so that the FPS of the game is much higher then the refresh rate of the monitor and the tearing is gone

Well, if your FPS = Hz, then you should have no tearing, but if your FPS > Hz then I don't think any tearing or even minor tearing occurs (someone double check this please) but I do know the mouse feels smoother. If your FPS is jumping from 60-120 and fluctuating a lot, then that will be annoying because you'll notice the fluctuation in the feel of the mouse smoothness, and I would just cap it to 60FPS.
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post #5 of 7
Thread Starter 
Maybe very stupid but if FRP>Hz results in no tearing, why are the shooter games get a 120hz monitors, because these most produce a massif tearing???

He is saying something different BTW and my game is reaching 60fps max or 50fps max depents on the adjustments of the limiter.
Edited by Toine3 - 8/2/13 at 11:41pm
post #6 of 7
I generally try and keep my FPS = HZ and also if possible like to keep FPS double HZ. So when i had a 60hz monitor i kpt it at 120FPS to thus reduce mouse lag and present a bit better feel(even though the frames are not actually seen). Now with a 120hz monitor i play Shadowrun PC at 240FPS using precision X to limit the frames rather than use vsync. I do use vsync if i cannot maintain 240FPS or 120FPS. This is because if you get jitter between framerates even a good deal over the refresh of the monitor it gives a unstable speed ratio between what you see and what is registered on the input.

I guess my point is stable framerate trumps high framerate even if you only have drops in certain parts(like grenade explosions) it will through off your gameplay. If you want to know more about the input lag take a look into frame input registration.

Hope this helps thumb.gif

EDIT: Another good point behind this is to possibly mess around with the setting for "frames presented in advance" This handles part of the hand-off between visual and input response. Look it up if you want to know more as it gets pretty comprehensive and is too much to type here.
Edited by Spartan F8 - 8/2/13 at 11:46pm
post #7 of 7
Quote:
Originally Posted by Toine3 View Post

Your saying: set FPS limit to unlimited, lowering grapic adjustments, so that the FPS of the game is much higher then the refresh rate of the monitor and the tearing is gone
Tearing can happen above or below vsync, so no.

The reason it happens is because a new frame is sent before the first one is finished drawing, simply by being out of sync. You do not need the frames to be arriving faster than the refresh rate, however, it does make it significantly more noticeable.
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