Huge G-sync problem

[Yoite]

I recently bought an acer xb270hu and I've been enjoying it but G-sync is giving me problems. If I enable G-sync a lot of games when I start them will have very low fps(never higher than single digits)but if I change any graphics setting the problem goes away and the refresh rate goes back to normal.

 

I've tried using the 352.86 driver and the 353.06 driver(latest driver at time of posting) and this issue happens with both drivers. This only happens with G-sync enabled. It doesn't sound like a hardware issue but I double checked my cables and my graphics card and nothing else is out of the norm. If anyone else has seen this issue I would greatly appreciate help. Now I would just go ahead and keep using my temp fix of changing any graphics setting but not all games allow this therefore making the game unplayable, and this issue would be very annoying in the long term.

[rtpb5642]

I recently bought an acer xb270hu and I've been enjoying it but G-sync is giving me problems. If I enable G-sync a lot of games when I start them will have very low fps(never higher than single digits)but if I change any graphics setting the problem goes away and the refresh rate goes back to normal.

 

I've tried using the 352.86 driver and the 353.06 driver(latest driver at time of posting) and this issue happens with both drivers. This only happens with G-sync enabled. It doesn't sound like a hardware issue but I double checked my cables and my graphics card and nothing else is out of the norm. If anyone else has seen this issue I would greatly appreciate help. Now I would just go ahead and keep using my temp fix of changing any graphics setting but not all games allow this therefore making the game unplayable, and this issue would be very annoying in the long term.

What gpu

[Yoite]

What gpu

780 ti

[rtpb5642]

780 ti

Odd im not sure 

[GrimNeo]

I recently bought an acer xb270hu and I've been enjoying it but G-sync is giving me problems. If I enable G-sync a lot of games when I start them will have very low fps(never higher than single digits)but if I change any graphics setting the problem goes away and the refresh rate goes back to normal.

 

I've tried using the 352.86 driver and the 353.06 driver(latest driver at time of posting) and this issue happens with both drivers. This only happens with G-sync enabled. It doesn't sound like a hardware issue but I double checked my cables and my graphics card and nothing else is out of the norm. If anyone else has seen this issue I would greatly appreciate help. Now I would just go ahead and keep using my temp fix of changing any graphics setting but not all games allow this therefore making the game unplayable, and this issue would be very annoying in the long term.

What games? I can test my gsync tonight and let you know. I'm using a different monitor and gpu. What refresh rate are you using?

[Yoite]

What games? I can test my gsync tonight and let you know. I'm using a different monitor and gpu. What refresh rate are you using?

Star wars the force unleashed. The game is capped to 30 fps so I wanted to see how much nicer gsync would make that game feel. You can't change the games graphic options in game which makes it unplayable with the problem I have. Another is star wars empire at war:forces of corruption. One thing I noticed was that the problem came back if I disabled gsync in the nvidia control panel and enabled it again. Team fortress 2 and Star wars the old republic are a couple of more. I'll upload a video later showing the issue.

[GrimNeo]

Star wars the force unleashed. The game is capped to 30 fps so I wanted to see how much nicer gsync would make that game feel. You can't change the games graphic options in game which makes it unplayable with the problem I have. Another is star wars empire at war:forces of corruption. One thing I noticed was that the problem came back if I disabled gsync in the nvidia control panel and enabled it again. Team fortress 2 and Star wars the old republic are a couple of more. I'll upload a video later showing the issue.

I found your issue. Read this article about G-Sync. I believe anything under 30 fps will cause it stutter.

 

http://www.anandtech.com/show/7582/nvidia-gsync-review/2

 

At a high level the sweet spot for G-Sync is going to be a situation where you have a frame rate that regularly varies between 30 and 60 fps. Game/hardware/settings combinations that result in frame rates below 30 fps will exhibit stuttering since the G-Sync display will be forced to repeat frames, and similarly if your frame rate is equal to your refresh rate (60, 120 or 144 fps in this case) then you won’t really see any advantages over plain old v-sync.

 

You can only do so much with VBLANK manipulation though. In present implementations the longest NVIDIA can hold a single frame is 33.3ms (30Hz). If the next frame isn’t ready by then, the G-Sync module will tell the display to redraw the last frame. The upper bound is limited by the panel/TCON at this point, with the only G-Sync monitor available today going as high as 6.94ms (144Hz). NVIDIA made it a point to mention that the 144Hz limitation isn’t a G-Sync limit, but a panel limit.

 

In pathological cases the impact can be shocking, particularly if you’re coming from a 60Hz panel today (with or without v-sync). The smoothness afforded by G-Sync is just awesome. I didn’t even realize how much of the v-sync related stutter I had simply come to accept. I’d frequently find a scene that stuttered a lot with v-sync enabled and approach it fully expecting G-Sync to somehow fail at smoothing things out this time. I always came away impressed. G-Sync also lowered my minimum frame rate requirement to not be distracted by stuttering. Dropping below 30 fps is still bothersome, but in all of the games I tested as long as I could keep frame rates north of 35 fps the overall experience was great.

 

In many situations the impact of G-Sync can be subtle. If you’re not overly bothered by tearing or are ok with v-sync stuttering, there’s really nothing G-Sync can offer you. There’s also the fact that G-Sync optimizes for a situation that may or may not be so visible 100% of the time. Unlike moving to a higher resolution or increasing quality settings, G-Sync’s value is best realized in specific scenarios where there’s a lot of frame rate variability - particularly between 30 and 60 fps. Staying in that sweet spot is tougher to do on a 1080p panel, especially if you’ve already invested in a pretty fast video card.

[Yoite]

I found your issue. Read this article about G-Sync. I believe anything under 30 fps will cause it stutter.

 

http://www.anandtech.com/show/7582/nvidia-gsync-review/2

The force unleashed is the only game thats capped at 30fps. The others aren't and I get well over 144 fps with most of them. Here's a video of the problem. It happens as soon as the game starts and never stops. Sorry for the bad quality I just used the quickest render settings for fast uploading.

Another thing to note with the force unleashed is the intros are not capped at 30fps, only the menus and gameplay are.

 

 

[GrimNeo]

The force unleashed is the only game thats capped at 30fps. The others aren't and I get well over 144 fps with most of them. Here's a video of the problem. It happens as soon as the game starts and never stops. Sorry for the bad quality I just used the quickest render settings for fast uploading.

Another thing to note with the force unleashed is the intros are not capped at 30fps, only the menus and gameplay are.

 

 

 

lol holy shit that is crazy. BTW gsync does not work well under 30 fps. Don't use it under 30fps. Can you show me a game at 144Hz with Gsync on. Tell me the game and I will test this. I have Titan X sli so I will be able to get higher fps than you. I will download Star wars right now to test it.

[Yoite]

lol holy shit that is crazy. BTW gsync does not work well under 30 fps. Don't use it under 30fps. Can you show me a game at 144Hz with Gsync on. Tell me the game and I will test this. I have Titan X sli so I will be able to get higher fps than you. I will download Star wars right now to test it.

Call of duty world at war and call of duty 4 work fine with gsync at 144hz. I can show you a video if you really want but it works fine nothing out of the norm

[GrimNeo]

Call of duty world at war and call of duty 4 work fine with gsync at 144hz. I can show you a video if you really want but it works fine nothing out of the norm

gsync does not work well under 30fps so that is why you are getting the stuttering issues in force unleashed

[Yoite]

gsync does not work well under 30fps so that is why you are getting the stuttering issues in force unleashed

no getting single digit fps like that is not normal like i said it does that in some games that have no fps cap and that problem goes away when i change any graphics settings or disable gsync completely. I just used force unleashed as an example 

[GrimNeo]

no getting single digit fps like that is not normal like i said it does that in some games that have no fps cap and that problem goes away when i change any graphics settings or disable gsync completely. I just used force unleashed as an example 

show me one that is not under 30fps that you are having problems with gsync on

[Yoite]

show me one that is not under 30fps that you are having problems with gsync on

Once again bad quality, sorry.

 

[GrimNeo]

Once again bad quality, sorry.

 

-snip-

Alright thank you. List your pc specs please. I will download empire at war and see if my game does this when I have gsync on. Do you have your monitor set to 144Hz? Try setting it to 120Hz and see if that helps.

 

Edit: I ran the same game you had on the second video. I tried with gsync off and gsync on. I had no issues what so ever. I ran only one Titan X and 1440p @ 144Hz. Are you running 780 Ti SLI or single gpu. If this does not help then it has to be issue with the monitor.

[Yoite]

Alright thank you. List your pc specs please. I will download empire at war and see if my game does this when I have gsync on. Do you have your monitor set to 144Hz? Try setting it to 120Hz and see if that helps.

 

Edit: I ran the same game you had on the second video. I tried with gsync off and gsync on. I had no issues what so ever. I ran only one Titan X and 1440p @ 144Hz. Are you running 780 Ti SLI or single gpu. If this does not help then it has to be issue with the monitor.

Issue still happens at 120hz, running single card. I would think this would happen in even more games if it were the monitor that was the problem

[GrimNeo]

Issue still happens at 120hz, running single card. I would think this would happen in even more games if it were the monitor that was the problem

I'm running 353.06 driver. I was getting like 7000 plus fps lol when I had gsync off. What resolution setting do you have in the game. I have 2560x1440 at 60Hz and max settings with vsync off

[Yoite]

I'm running 353.06 driver. I was getting like 7000 plus fps lol when I had gsync off. What resolution setting do you have in the game. I have 2560x1440 at 60Hz and max settings with vsync off

2560x1440 at 144Hz max settings vsync off

[GrimNeo]

2560x1440 at 144Hz max settings vsync off

I mean in game settings.

[foamygopher]

http://www.pcper.com/reviews/Graphics-Cards/Dissecting-G-Sync-and-FreeSync-How-Technologies-Differthis should clarify Gsync under 30 fps. It actually should work.

[foamygopher]

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