How to get G-Sync to work?

[sympler]

So recently I bought the Acer XB280HK UHD4k2k and i have a gtx 1080, now the problem is i enabled g sync on the NV control panel and disabled V-Sync in the control panel as well as in games (BF1,RS6,Insurgency,etc..) but im still getting screen tearing... Is it the monitor i got or is there something i need to change? Also i have my old Acer monitor connected through Dvi onto the motherboard... i dont think that should effect the graphics card.

 

[Chugalug_]

Ensure that you are running the game in full screen and that G-Sync is set to run in fullscreen mode.
If you're doing it in windowed mode it is VERY picky and often just doesn't work at all.
Are you sure its screen tearing and not fps dips below 60?

 

[Hlsgsz]

You need to either enable Vsync asweel(G-Sync was designed to be paired with it) or limit yoru frames so they never go above the monitor's refresh rate. G-Sync itself does not do this for you.
Also, obviously, make sure you are connecting your monitor via DP and that you enagle G-Sync in teh monitor's menu(it's not on by default).

 

[boju]

Yeah that monitor has only 1 DisplayPort input.

And too i agree i believe it's simply your 1080 is delivering frames past the 60hz threshold of Gsync, will need to cap the fps to 57~59fps

 

[skit75]

Also, if you are getting more than 60FPS, you will be out of range for gsync on that monitor. Increase your in game eye-candy settings until you can get between 45-55 fps(not more than 60) on average to take advantage of G-Sync. That monitor should be good down to 30 fps, where it will just start duplicating frames to keep up.

** ^ What they said 😉

 

[Chugalug_]

Not quite correct skit75.
It is more that when G-Sync is hitting exceedingly high frame rates, say 300fps in CS:GO, it will cause significant input lag.
Also yeah, OP you need to enable either V-Sync or Fast Sync under global Nvidia settings which is something I forgot to mention.

 

[skit75]

I don't understand how you get input lag from more frames... first I've heard of that. G-Sync has an acceptable range it works in for each monitor and that range is typically larger than FreeSync but both adaptive refreshes generally work better at lower frame rates.

His monitor has a max refresh rate of 60Hz. GSync won't help him passed 60 FPS. I agree he is very likely pushing more frames to the monitor than it can handle. It would be best to push the limits of ingame settings to achieve a lower framerate and let GSynce do the adaptive refreshing that he payed the premium for. That would be 50-60 FPS range, for that monitor.

 

[Chugalug_]

G-Sync works effectively between 30-90fps in general, as this is the range in which you see the most difference.
With G-Sync it has always been an iffy thing where when you hit the fps cap for your monitor with frame rates far above, like in CS:GO as I mentioned earlier, it has this weird thing where it adds a tonne of input lag.
Tbh i'm not really sure why, but you could do a bit of research into it with a quick google.

 

[skit75]

It appears to add input lag with GSync ON because once you have a higher frame rate than your monitor can deliver, V-Sync is enabled and filling extra buffer frames so it has a complete frame to send rather than sending half of frame before the next frame clears(screen tearing).

OP didn't mention any such example. The games he did mention he could easily ask more of the ingame settings to achieve a butter-like GSync experience, by operating within GSync's range for this monitor. I was at the Tom's FreeSync Vs. GSync event and calibrating the test games to each adaptive refresh rate's range was one of the hurdles to make the blind tests, fair.

 

[Chugalug_]

Ah, right.
Cheers for the info.

 

[boju]

Wasn't sure if the combo of Gsync + Vsync would still introduce input lag or not but yea looks like it still does.

In the past playing on vanilla 60Hz screens I've always tried to avoid using vsync by capping frames to 59. The games i played had a steady minimum fps and never exceeded the 59fps limit, so it didn't matter to me if Vsync was on or off and never had input lag or screen tearing. Games with fps limit commands is always a blessing.

 

[frank_hnd]

omg, just use fast sync instead of vsync. in the vsync menu you will get: ON/OFF/Fast. choose fast.