G-Sync not working with V-Sync off?

[lamboman]

Hi all,

I'm running the latest drivers (359.00) for my SLIed 980Tis. G-Sync works fine with V-Sync On in the Nvidia Control Panel, however if G-Sync is turned off, no matter whether that be in the game settings with "Let the 3D application decide" set, or in Nvidia Control Panel, G-Sync simply doesn't work. Restricting the frame rate in-game to keep it within the G-Sync range (up to 100Hz on the X34) doesn't work either, just results in G-Sync not being enabled.

I'm 99.9% sure this is a bug, however searching online for a solution has produced no results. Input lag is noticeably increased with V-Sync enabled, hence why I'd rather cap the frame rate (which is known to keep input lag low, particularly in CS:GO).

Is anybody aware of a fix? Help would be much appreciated!

Thanks in advance!

 

[lamboman]

Hi all,

Rroff - just tried that before I even read your post, and yes, just happens that capping at 85fps works wonders. No perceivable difference in smoothness however input lag is completely gone. Lovely!

Thanks for the responses

 

[lamboman]

With G-sync you shouldn't have to cap fps. G-sync does it for you automatically. You just have to leave v-sync on the control panel.

You say this and your point of view is 100% correct, however for whatever reason, whether this is a bug or some design flaw, G-Sync/V-Sync settings aren't working properly and manual capping is required. As per my first post, G-Sync should work in the monitor's range regardless of the V-Sync setting, but for some reason this isn't the case. Turning V-Sync on in the Control Panel is the only solution as far as I can see, but in CS:GO it introduces tons of input lag (to the point it is unplayable). Capping the frame rate manually sorts the input lag issue.

I've tested this in BF4, and while G-Sync still doesn't work with V-Sync disabled, there is no hit on input lag, so no capping is required. V-Sync on is the ideal here anyway.

I love G-Sync but i think there is a lot of people with misconceptions on what to do with there settings including myself. You would think Nvidia could make it easier for everybody surely?

I'd say that the misconceptions aren't Nvidia's fault, seeing as the commonly-referenced blog post explaining the feature is crystal clear: http://www.geforce.com/whats-new/articles/g-sync-gets-even-better

What is Nvidia's fault is that in the latest drivers at least, it doesn't work as described. No amount of tweaking settings can fix it.